Daniela Kraljević, Svjetlana Mikulić, Ante Damjanović
Netherton syndrome (NS) is a rare autosomal recessive disorder caused by SPINK5 mutations, leading to LEKTI deficiency and skin barrier dysfunction. It manifests as ichthyosis, trichorrhexis invaginata (bamboo hair), and atopic diathesis, including food allergies, asthma, and elevated IgE levels. Early genetic testing is key for accurate diagnosis and treatment. We report a case of a two-year-old girl initially diagnosed with atopic dermatitis, presenting with severe, persistent skin issues from infancy. The symptoms included dry, scaly, and inflamed skin, along with elevated IgE levels and polysensitization to food allergens. Trichorrhexis invaginata was identified, and genetic testing confirmed NS. Despite treatments with corticosteroids and emollients, the patient continued to experience flare-ups, leading to the use of biological therapy, specifically secukinumab, due to persistent skin barrier dysfunction. NS is often misdiagnosed due to its overlap with atopic dermatitis, especially in early stages. Mutations in SPINK5 vary in severity, influencing treatment outcomes. Current therapies, including corticosteroids, emollients, and immunomodulators, provide limited relief. New treatments like IVIG, retinoids, and biologics (e.g., secukinumab, dupilumab) show promise in managing inflammation and restoring the skin barrier, with secukinumab targeting IL-17A showing significant improvements. The psychosocial impact of NS affects the patient's quality of life, causing anxiety, social withdrawal, and family stress. Early genetic testing, targeted therapies, and psychosocial support are crucial for managing NS. Future research should focus on improving genetic testing accessibility, optimizing combination therapies, and addressing psychosocial challenges.
{"title":"Netherton Syndrome: A Case-Based Review of Diagnosis, Management, and Emerging Treatments.","authors":"Daniela Kraljević, Svjetlana Mikulić, Ante Damjanović","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Netherton syndrome (NS) is a rare autosomal recessive disorder caused by SPINK5 mutations, leading to LEKTI deficiency and skin barrier dysfunction. It manifests as ichthyosis, trichorrhexis invaginata (bamboo hair), and atopic diathesis, including food allergies, asthma, and elevated IgE levels. Early genetic testing is key for accurate diagnosis and treatment. We report a case of a two-year-old girl initially diagnosed with atopic dermatitis, presenting with severe, persistent skin issues from infancy. The symptoms included dry, scaly, and inflamed skin, along with elevated IgE levels and polysensitization to food allergens. Trichorrhexis invaginata was identified, and genetic testing confirmed NS. Despite treatments with corticosteroids and emollients, the patient continued to experience flare-ups, leading to the use of biological therapy, specifically secukinumab, due to persistent skin barrier dysfunction. NS is often misdiagnosed due to its overlap with atopic dermatitis, especially in early stages. Mutations in SPINK5 vary in severity, influencing treatment outcomes. Current therapies, including corticosteroids, emollients, and immunomodulators, provide limited relief. New treatments like IVIG, retinoids, and biologics (e.g., secukinumab, dupilumab) show promise in managing inflammation and restoring the skin barrier, with secukinumab targeting IL-17A showing significant improvements. The psychosocial impact of NS affects the patient's quality of life, causing anxiety, social withdrawal, and family stress. Early genetic testing, targeted therapies, and psychosocial support are crucial for managing NS. Future research should focus on improving genetic testing accessibility, optimizing combination therapies, and addressing psychosocial challenges.</p>","PeriodicalId":94367,"journal":{"name":"Acta dermatovenerologica Croatica : ADC","volume":"33 1","pages":"26-30"},"PeriodicalIF":0.5,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145433486","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Alberto Soto-Moreno, Jose Muñoz-Baeza, Daniel Muñoz-Barba, Manuel Sánchez-Díaz, Salvador Arias-Santiago
Alopecia areata (AA) is an autoimmune disorder characterized by non-scarring hair loss, often accompanied by systemic manifestations, suggesting a potential link to systemic inflammation. While previous studies have explored the association between AA and cardiovascular risk (CVR), findings remain inconsistent. The main objectives of the study were to analyze cardiovascular risk (CVR) and systemic inflammatory activity in patients with AA compared with healthy controls. Additionally, the study aimed to investigate associations between systemic inflammation/CVR and baseline clinical variables in patients with AA. The study used a case-control design with patients matched for age, sex, and anthropometric characteristics. Measurements of blood pressure, pulse wave velocity, lipid and carbohydrate metabolism parameters, systemic inflammatory markers, and vitamin D levels were conducted. Seventy-two participants were included in the study (36 patients with AA, 36 healthy controls), of whom 72.2% were women (52/72), with a mean age of 39 years (±2.6). The baseline Severity of Alopecia Tool (SALT) values in patients with AA was 42% (±6). Patients with AA had higher systolic blood pressure than controls, with no differences in diastolic blood pressure, pulse wave velocity, or metabolic profile. Patients with AA showed higher systemic inflammation parameters and lower vitamin D levels. No association was observed between CVR and systemic inflammation; these factors were not associated with disease severity, duration, or type of treatment. Despite presenting similar cardiovascular risk profiles to healthy controls, patients with AA demonstrated elevated systemic inflammatory activity. However, these factors did not appear to be interrelated, and were not associated with disease severity. risk profiles to healthy controls, they had elevated systemic inflammatory activity and lower vitamin D levels.
{"title":"Cardiovascular Risk and Systemic Inflammation in Alopecia Areata: An Observational Case-control Study.","authors":"Alberto Soto-Moreno, Jose Muñoz-Baeza, Daniel Muñoz-Barba, Manuel Sánchez-Díaz, Salvador Arias-Santiago","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Alopecia areata (AA) is an autoimmune disorder characterized by non-scarring hair loss, often accompanied by systemic manifestations, suggesting a potential link to systemic inflammation. While previous studies have explored the association between AA and cardiovascular risk (CVR), findings remain inconsistent. The main objectives of the study were to analyze cardiovascular risk (CVR) and systemic inflammatory activity in patients with AA compared with healthy controls. Additionally, the study aimed to investigate associations between systemic inflammation/CVR and baseline clinical variables in patients with AA. The study used a case-control design with patients matched for age, sex, and anthropometric characteristics. Measurements of blood pressure, pulse wave velocity, lipid and carbohydrate metabolism parameters, systemic inflammatory markers, and vitamin D levels were conducted. Seventy-two participants were included in the study (36 patients with AA, 36 healthy controls), of whom 72.2% were women (52/72), with a mean age of 39 years (±2.6). The baseline Severity of Alopecia Tool (SALT) values in patients with AA was 42% (±6). Patients with AA had higher systolic blood pressure than controls, with no differences in diastolic blood pressure, pulse wave velocity, or metabolic profile. Patients with AA showed higher systemic inflammation parameters and lower vitamin D levels. No association was observed between CVR and systemic inflammation; these factors were not associated with disease severity, duration, or type of treatment. Despite presenting similar cardiovascular risk profiles to healthy controls, patients with AA demonstrated elevated systemic inflammatory activity. However, these factors did not appear to be interrelated, and were not associated with disease severity. risk profiles to healthy controls, they had elevated systemic inflammatory activity and lower vitamin D levels.</p>","PeriodicalId":94367,"journal":{"name":"Acta dermatovenerologica Croatica : ADC","volume":"33 1","pages":"9-15"},"PeriodicalIF":0.5,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145433126","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The effectiveness of ixekizumab in controlling moderate to severe psoriasis has been established by clinical trials. Nevertheless, further research from real-world scenarios is still required. We aimed to assess the long-term efficacy, drug survival, and safety of ixekizumab in the treatment of psoriasis and to determine the factors that could potentially impact the efficacy and drug survival. Patients with psoriasis who initiated ixekizumab treatment underwent follow-up for up to 156 weeks. The effectiveness of the treatment was determined using the Psoriasis Area Severity Index (PASI). The study employed Kaplan-Meier analysis to assess drug survival and utilized Cox regression analysis to analyze predictive factors. The data of 496 patients with moderate-to-severe psoriasis were included in this study. PASI 75/ 90 and 100 rates for the 156th week were found to be 98.1%, 96.2%, and 30.7%, respectively. Palmoplantar involvement was the only factor associated with PASI 100 achievement at the 16th week (OR 3.848, %95 CI: 1.341-11.043, p: 0.012). At 12 months, 24 months, and 36 months, the cumulative drug survival probability rates were 91.6%, 86.8%, and 85.7%, respectively. PASI 90 achievement at the 16th week was associated with a lower rate of discontinuation (HR 4.634, 95% CI (2.073-10.358), P<0.001) while female sex was associated with high rate of discontinuation (HR 2.270, 95% CI (1.081-4.770), P=0.030). Our study indicates rapid, sustainable effectiveness of ixekizumab in psoriasis treatment. Achieving PASI 100 may be challenging for patients with palmoplantar involvement. Achieving PASI 90 by the 16th week is a predictor of longer drug survival.
{"title":"Long-term Clinical Efficacy, Safety, and Drug Survival of Ixekizumab for Patients with Psoriasis in a Real-life Setting.","authors":"Fatmaelif Yıldırım, Fatma Aslı Hapa","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The effectiveness of ixekizumab in controlling moderate to severe psoriasis has been established by clinical trials. Nevertheless, further research from real-world scenarios is still required. We aimed to assess the long-term efficacy, drug survival, and safety of ixekizumab in the treatment of psoriasis and to determine the factors that could potentially impact the efficacy and drug survival. Patients with psoriasis who initiated ixekizumab treatment underwent follow-up for up to 156 weeks. The effectiveness of the treatment was determined using the Psoriasis Area Severity Index (PASI). The study employed Kaplan-Meier analysis to assess drug survival and utilized Cox regression analysis to analyze predictive factors. The data of 496 patients with moderate-to-severe psoriasis were included in this study. PASI 75/ 90 and 100 rates for the 156th week were found to be 98.1%, 96.2%, and 30.7%, respectively. Palmoplantar involvement was the only factor associated with PASI 100 achievement at the 16th week (OR 3.848, %95 CI: 1.341-11.043, p: 0.012). At 12 months, 24 months, and 36 months, the cumulative drug survival probability rates were 91.6%, 86.8%, and 85.7%, respectively. PASI 90 achievement at the 16th week was associated with a lower rate of discontinuation (HR 4.634, 95% CI (2.073-10.358), P<0.001) while female sex was associated with high rate of discontinuation (HR 2.270, 95% CI (1.081-4.770), P=0.030). Our study indicates rapid, sustainable effectiveness of ixekizumab in psoriasis treatment. Achieving PASI 100 may be challenging for patients with palmoplantar involvement. Achieving PASI 90 by the 16th week is a predictor of longer drug survival.</p>","PeriodicalId":94367,"journal":{"name":"Acta dermatovenerologica Croatica : ADC","volume":"33 1","pages":"16-25"},"PeriodicalIF":0.5,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145433476","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The aim of this case report is to present a patient with Lyme carditis and erythema migrans complicated with third-degree atrioventricular (AV) block and the need for pacemaker implantation. A 20-year-old patient comes to the hospital because of syncope. A few days earlier, he had chest pains with an irregular heartbeat. Upon arrival, the heart rate is 30 beats per minute. The electrocardiogram (ECG) shows AV block of the third degree with asystolic pauses. In laboratory findings, leukocytosis (20x109) and C-reactive protein (10.8 mg/L). A transcutaneous temporary external pacemaker was placed. Anamnestic information is obtained about a tick bite and migrating erythema at the site of the bite one month before arrival at the hospital. Enzyme immunoassay was positive for Borrelia burgdorferi. Ceftriaxone is introduced into the treatment. Despite therapy, the patient has persistent symptomatic AV block of the third degree with presyncope and syncope, which is why a permanent two-chamber pacemaker is implanted. He was discharged from the hospital in a cardiac stable condition. At the follow-up after one year, he was symptom-free, there was no AV block in the ECG, and 0.1% ventricular stimulation was recorded in the pacemaker's memory. We conclude that third-degree AV block caused by a tick bite, complicated by Borrelia burgdorferi infection with erythema migrans and carditis, although in most cases it passes spontaneously, sometimes, if presyncope and syncope are present, along with temporary electrostimulation of the heart, it requires permanent electrostimulation of the heart.
{"title":"Association of Lyme Disease and Erythema Migrans with Atrioventricular Block.","authors":"Andrej Došen, Ivana Crnojević, Davor Horvat","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The aim of this case report is to present a patient with Lyme carditis and erythema migrans complicated with third-degree atrioventricular (AV) block and the need for pacemaker implantation. A 20-year-old patient comes to the hospital because of syncope. A few days earlier, he had chest pains with an irregular heartbeat. Upon arrival, the heart rate is 30 beats per minute. The electrocardiogram (ECG) shows AV block of the third degree with asystolic pauses. In laboratory findings, leukocytosis (20x109) and C-reactive protein (10.8 mg/L). A transcutaneous temporary external pacemaker was placed. Anamnestic information is obtained about a tick bite and migrating erythema at the site of the bite one month before arrival at the hospital. Enzyme immunoassay was positive for Borrelia burgdorferi. Ceftriaxone is introduced into the treatment. Despite therapy, the patient has persistent symptomatic AV block of the third degree with presyncope and syncope, which is why a permanent two-chamber pacemaker is implanted. He was discharged from the hospital in a cardiac stable condition. At the follow-up after one year, he was symptom-free, there was no AV block in the ECG, and 0.1% ventricular stimulation was recorded in the pacemaker's memory. We conclude that third-degree AV block caused by a tick bite, complicated by Borrelia burgdorferi infection with erythema migrans and carditis, although in most cases it passes spontaneously, sometimes, if presyncope and syncope are present, along with temporary electrostimulation of the heart, it requires permanent electrostimulation of the heart.</p>","PeriodicalId":94367,"journal":{"name":"Acta dermatovenerologica Croatica : ADC","volume":"33 1","pages":"34-36"},"PeriodicalIF":0.5,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145433661","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Fluoroscopy-induced radiodermatitis, whether acute or chronic, is a complication of fluoroscopy-guided cardiac diagnostic and interventional procedures. Repeated cardiac catheterization and coronary angioplasty procedures, prolonged exposure time and, radiation doses greater than 10-12 Gy are the culprits in the development of skin inflammation. Acute radiodermatitis usually develops within two weeks after the procedure and is easily recognized clinically, whereas the chronic form can have a long latent period of almost ten years. Clinical symptoms of chronic disease caused by excessive irradiation include atrophy, sclerosis, telangiectasia, pigmentary changes, ulceration, and even the development of malignant neoplasms. We describe a patient with a history of psoriasis in whom chronic radiodermatitis developed after six fluoroscopic cardiac procedures, and the diagnosis established approximately four years after the last catheterization.
{"title":"Chronic Radiodermatitis Following Repeated Coronary Interventions in a Patient with Psoriasis: A Case Report.","authors":"Lara Vasari, Gordana Krnjević-Pezić, Lucija Tomić Babić, Mirna Bradamante","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Fluoroscopy-induced radiodermatitis, whether acute or chronic, is a complication of fluoroscopy-guided cardiac diagnostic and interventional procedures. Repeated cardiac catheterization and coronary angioplasty procedures, prolonged exposure time and, radiation doses greater than 10-12 Gy are the culprits in the development of skin inflammation. Acute radiodermatitis usually develops within two weeks after the procedure and is easily recognized clinically, whereas the chronic form can have a long latent period of almost ten years. Clinical symptoms of chronic disease caused by excessive irradiation include atrophy, sclerosis, telangiectasia, pigmentary changes, ulceration, and even the development of malignant neoplasms. We describe a patient with a history of psoriasis in whom chronic radiodermatitis developed after six fluoroscopic cardiac procedures, and the diagnosis established approximately four years after the last catheterization.</p>","PeriodicalId":94367,"journal":{"name":"Acta dermatovenerologica Croatica : ADC","volume":"33 1","pages":"31-33"},"PeriodicalIF":0.5,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145433244","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
<p><p>Dear Editor, Viral hepatitis reactivation is one of the safety concerns for treatments based on biological agents. Hepatitis B (HBV) reactivation has been reported more frequently than hepatitis C (HCV) reactivation. It is more common with TNF-alpha inhibitors than with IL-17 inhibitors. The risk is higher, especially in those taking additional immunosuppressive drugs (systemic steroids, methotrexate, etc.) (1). Hair discoloration is a rare adverse effect observed with some medications. To our knowledge, hair discoloration developing under secukinumab treatment has not been previously reported in the literature. Herein, we describe a case of a patient who developed simultaneous HBV reactivation and hair discoloration under secukinumab treatment. A 36-year-old male patient was admitted to our clinic with a diagnosis of psoriasis. Secukinumab treatment was initiated, as the patient had not responded to previous treatments with cyclosporine, methotrexate, and ustekinumab. The patient had no known chronic diseases and/or arthritis. Hepatitis serology in baseline examinations before secukinumab treatment was as follows: positive (+) for hepatitis B surface antibodies (Anti-HBs), positive (+) for antibodies to hepatitis B core antigen (Anti Hbc IgG), negative (-) for hepatitis B surface antigen (Hbs Ag), and negative (-) HBV- DNA PCR. The patient was followed up every 3 months with HBV-DNA PCR monitoring, without prophylaxis. In the second year of treatment, although Hbs Ag was negative and liver transaminase levels were within the normal range in serum, the HBV-DNA PCR test became positive. The reddish discoloration in the patient's hair was also notable (Figure 1). The patient reported that this discoloration had occurred after secukinumab treatment. He reported that he did not dye his hair and did not use any additional medication during this period. Secukinumab treatment was continued, together with entecavir treatment. After using entecavir for three months, the HBV-DNA PCR test became negative. Hair color discoloration persisted during follow-up. HBV reactivation may occur under biological treatments without Hbs Ag test positivity. Serial HBV-DNA PCR test follow-up is important, especially in patients with Anti-Hbc IgG positivity who do not/cannot receive prophylaxis (1,2). Changes in hair color and/or structure have mostly been reported with chemotherapy drugs (3). New hair growth and darkening of white hair have been reported with secukinumab, but discoloration has not been previously reported in the literature (4,5). This may be related to the role of inflammatory cytokines in hair follicle development. However, HBV-DNA positivity has been reported in hair and nail samples in patients with chronic HBV infection (6). It has been demonstrated that iron and copper levels had changed in the hair samples of people with viral hepatitis (7). In one case, straightening of curly hair was reported after HCV treatment (ribavirin + interferon) (8).
{"title":"Simultaneous HBV Reactivation and Hair Discoloration Under Secukinumab Treatment.","authors":"Ece Erbağcı","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Dear Editor, Viral hepatitis reactivation is one of the safety concerns for treatments based on biological agents. Hepatitis B (HBV) reactivation has been reported more frequently than hepatitis C (HCV) reactivation. It is more common with TNF-alpha inhibitors than with IL-17 inhibitors. The risk is higher, especially in those taking additional immunosuppressive drugs (systemic steroids, methotrexate, etc.) (1). Hair discoloration is a rare adverse effect observed with some medications. To our knowledge, hair discoloration developing under secukinumab treatment has not been previously reported in the literature. Herein, we describe a case of a patient who developed simultaneous HBV reactivation and hair discoloration under secukinumab treatment. A 36-year-old male patient was admitted to our clinic with a diagnosis of psoriasis. Secukinumab treatment was initiated, as the patient had not responded to previous treatments with cyclosporine, methotrexate, and ustekinumab. The patient had no known chronic diseases and/or arthritis. Hepatitis serology in baseline examinations before secukinumab treatment was as follows: positive (+) for hepatitis B surface antibodies (Anti-HBs), positive (+) for antibodies to hepatitis B core antigen (Anti Hbc IgG), negative (-) for hepatitis B surface antigen (Hbs Ag), and negative (-) HBV- DNA PCR. The patient was followed up every 3 months with HBV-DNA PCR monitoring, without prophylaxis. In the second year of treatment, although Hbs Ag was negative and liver transaminase levels were within the normal range in serum, the HBV-DNA PCR test became positive. The reddish discoloration in the patient's hair was also notable (Figure 1). The patient reported that this discoloration had occurred after secukinumab treatment. He reported that he did not dye his hair and did not use any additional medication during this period. Secukinumab treatment was continued, together with entecavir treatment. After using entecavir for three months, the HBV-DNA PCR test became negative. Hair color discoloration persisted during follow-up. HBV reactivation may occur under biological treatments without Hbs Ag test positivity. Serial HBV-DNA PCR test follow-up is important, especially in patients with Anti-Hbc IgG positivity who do not/cannot receive prophylaxis (1,2). Changes in hair color and/or structure have mostly been reported with chemotherapy drugs (3). New hair growth and darkening of white hair have been reported with secukinumab, but discoloration has not been previously reported in the literature (4,5). This may be related to the role of inflammatory cytokines in hair follicle development. However, HBV-DNA positivity has been reported in hair and nail samples in patients with chronic HBV infection (6). It has been demonstrated that iron and copper levels had changed in the hair samples of people with viral hepatitis (7). In one case, straightening of curly hair was reported after HCV treatment (ribavirin + interferon) (8). ","PeriodicalId":94367,"journal":{"name":"Acta dermatovenerologica Croatica : ADC","volume":"33 1","pages":"44-45"},"PeriodicalIF":0.5,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145433506","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mislav Mokos, Ivana Prkačin, Davor Tomas, Mirna Šitum
<p><p>Dear Editor, Sentinel lymph node biopsy (SLNB) is crucial for melanoma staging, but the presence of nodal nevi (NN) can complicate diagnosis by mimicking metastatic melanoma. Misclassification occurs in over 10% of cases, potentially leading to overtreatment [1]. We present a case of a 53-year-old woman with superficial spreading melanoma (SSM), where SLNB revealed a capsular NN without metastasis. A 53-year-old female patient was referred to our department with an atypical nevus on her right calf. Following its excision, histological analysis confirmed the diagnosis of SSM with a Breslow thickness of 1.80 mm, classified as stage pT2a. The tumor exhibited three mitoses per mm², no evidence of lymphovascular invasion, and a mild chronic inflammatory infiltrate at its base. According to current recommendations, a re-excision of the postoperative scar with SLNB was performed. Histological analysis found no metastases in the scar tissue or the sentinel lymph node (SLN). However, a small, capsular NN was identified within the SLN (Figure 1). Benign melanocytic nevus cell aggregates, commonly referred to as NN, are typically found within the capsule or trabeculae of lymph nodes, as seen in our patient [2]. The origin of NN cells is debated, with two main theories: embryological migration from the neuroectoderm or lymphatic migration from cutaneous nevi. Recent study findings, particularly the intracapsular location of nevus cells and their higher prevalence in melanoma patients than in breast cancer patients, support the hypothesis that these cells migrate via lymphatic routes rather than being remnants of embryonic development [3]. When NN appear in SLNs, which is estimated to be the case in 1% to 11% of SLNBs, they may present significant diagnostic challenges in melanoma patients [4]. Typically, NN are small, triangular, and lack cytonuclear atypia and mitotic activity, distinguishing them from metastatic melanoma, which is usually found in the parenchyma. However, when nevi extend into the parenchyma or paratrabecular areas, they can mimic metastases, making the differential diagnosis challenging, especially for small melanoma metastases with nevoid morphology [1]. A specialized review of SLNB samples initially classified as melanoma-positive revealed that over 10% were misdiagnosed cases of NN [1]. This diagnostic ambiguity between NN and true SLN metastases carries serious implications, as misclassification can lead to either overtreatment or undertreatment of the patient. On the other hand, the updated EORTC protocol demonstrated a high incidence of NN in SLNBs and identified a strong association between NN and nevus-associated melanoma [4]. Furthermore, Kretschmer et al. demonstrated that SLN-negative melanoma patients with NN exhibited a slightly lower survival rate, while SLN-positive melanoma patients who had both NN and melanoma metastases showed a marginally better prognosis compared to those with metastases alone. However, these dif
{"title":"Incidental Nodal Nevus in the Sentinel Lymph Node of a Melanoma Patient.","authors":"Mislav Mokos, Ivana Prkačin, Davor Tomas, Mirna Šitum","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Dear Editor, Sentinel lymph node biopsy (SLNB) is crucial for melanoma staging, but the presence of nodal nevi (NN) can complicate diagnosis by mimicking metastatic melanoma. Misclassification occurs in over 10% of cases, potentially leading to overtreatment [1]. We present a case of a 53-year-old woman with superficial spreading melanoma (SSM), where SLNB revealed a capsular NN without metastasis. A 53-year-old female patient was referred to our department with an atypical nevus on her right calf. Following its excision, histological analysis confirmed the diagnosis of SSM with a Breslow thickness of 1.80 mm, classified as stage pT2a. The tumor exhibited three mitoses per mm², no evidence of lymphovascular invasion, and a mild chronic inflammatory infiltrate at its base. According to current recommendations, a re-excision of the postoperative scar with SLNB was performed. Histological analysis found no metastases in the scar tissue or the sentinel lymph node (SLN). However, a small, capsular NN was identified within the SLN (Figure 1). Benign melanocytic nevus cell aggregates, commonly referred to as NN, are typically found within the capsule or trabeculae of lymph nodes, as seen in our patient [2]. The origin of NN cells is debated, with two main theories: embryological migration from the neuroectoderm or lymphatic migration from cutaneous nevi. Recent study findings, particularly the intracapsular location of nevus cells and their higher prevalence in melanoma patients than in breast cancer patients, support the hypothesis that these cells migrate via lymphatic routes rather than being remnants of embryonic development [3]. When NN appear in SLNs, which is estimated to be the case in 1% to 11% of SLNBs, they may present significant diagnostic challenges in melanoma patients [4]. Typically, NN are small, triangular, and lack cytonuclear atypia and mitotic activity, distinguishing them from metastatic melanoma, which is usually found in the parenchyma. However, when nevi extend into the parenchyma or paratrabecular areas, they can mimic metastases, making the differential diagnosis challenging, especially for small melanoma metastases with nevoid morphology [1]. A specialized review of SLNB samples initially classified as melanoma-positive revealed that over 10% were misdiagnosed cases of NN [1]. This diagnostic ambiguity between NN and true SLN metastases carries serious implications, as misclassification can lead to either overtreatment or undertreatment of the patient. On the other hand, the updated EORTC protocol demonstrated a high incidence of NN in SLNBs and identified a strong association between NN and nevus-associated melanoma [4]. Furthermore, Kretschmer et al. demonstrated that SLN-negative melanoma patients with NN exhibited a slightly lower survival rate, while SLN-positive melanoma patients who had both NN and melanoma metastases showed a marginally better prognosis compared to those with metastases alone. However, these dif","PeriodicalId":94367,"journal":{"name":"Acta dermatovenerologica Croatica : ADC","volume":"33 1","pages":"40-41"},"PeriodicalIF":0.5,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145433306","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Loren Serdarević, Ivan Raguž, Ivana Ilić, Snježana Dotlić, Romana Čeović
Cutaneous lymphoid hyperplasia (CLH) is a benign skin disorder that clinically and histopathologically mimics cutaneous lymphoma, making it a diagnostic challenge. CLH can exhibit a predominance of B cells, T cells, or a combination of both. This report illustrates a case of a 27-year-old male patient with an erythematous plaque on his cheek, initially histopathologically described as lymphoid hyperplasia of B-immunophenotype. The lesion recurred years later, necessitating a thorough diagnostic investigation. Clonality analysis coupled with imaging led to the exclusion of cutaneous lymphoma, therefore confirming B-cell CLH as the final diagnosis. Treatment options were limited by the esthetic demands of the facial region, as well as the patient's age, considering the risks of radiotherapy in younger patients. Furthermore, the possibility of progression to cutaneous lymphoma was considered, highlighting the importance of long-term patient follow-up.
{"title":"Diagnostic and Therapeutic Challenges of Cutaneous Lymphoid Hyperplasia in the Facial Region: A Case Report.","authors":"Loren Serdarević, Ivan Raguž, Ivana Ilić, Snježana Dotlić, Romana Čeović","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Cutaneous lymphoid hyperplasia (CLH) is a benign skin disorder that clinically and histopathologically mimics cutaneous lymphoma, making it a diagnostic challenge. CLH can exhibit a predominance of B cells, T cells, or a combination of both. This report illustrates a case of a 27-year-old male patient with an erythematous plaque on his cheek, initially histopathologically described as lymphoid hyperplasia of B-immunophenotype. The lesion recurred years later, necessitating a thorough diagnostic investigation. Clonality analysis coupled with imaging led to the exclusion of cutaneous lymphoma, therefore confirming B-cell CLH as the final diagnosis. Treatment options were limited by the esthetic demands of the facial region, as well as the patient's age, considering the risks of radiotherapy in younger patients. Furthermore, the possibility of progression to cutaneous lymphoma was considered, highlighting the importance of long-term patient follow-up.</p>","PeriodicalId":94367,"journal":{"name":"Acta dermatovenerologica Croatica : ADC","volume":"33 1","pages":"37-39"},"PeriodicalIF":0.5,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145433209","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Linear IgA Bullous Dermatosis (LABD) is a rare autoimmune blistering disease (AIBD) characterized by linear depositions of IGA antibodies at the dermo-epidermal junction, resulting in subepithelial vesiculobullous lesions that affect the skin and mucous membranes. Despite advancements in the study of AIBDs, significant gaps persist in LABD's clinical presentation, treatment, and outcome measures due to the absence of validated, disease-specific scoring systems. The purpose of this paper is to identify any differences in disease distribution between adults and children, and to review and evaluate existing scoring tool for AIBDs. A literature search was performed using Embase and PubMed to identify relevant studies and case reports. According to the literature, adults and children had different cutaneous distributions of disease, with lesions on the perineum, hands and feet, and face more frequently reported in children. However, there was inconsistent data on whether mucous membrane lesions were more frequent in adults or children. Current scoring systems for AIBDs were also identified, with several systemic scoring systems existing in the literature that are validated in scoring AIBD severity. There is currently no literature on scoring systems specific to LABD, underscoring the need to develop and validate LABD specific tools to facilitate the development of standardized treatment guidelines and advance the understanding and management of LABD.
{"title":"Linear IgA Bullous Dermatosis in Adults and Children: A Narrative Review of Literature on Disease Distribution and Evaluation of Existing Scoring Tools.","authors":"Alena Yang, Sera Sarsam, Dedee F Murrell","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Linear IgA Bullous Dermatosis (LABD) is a rare autoimmune blistering disease (AIBD) characterized by linear depositions of IGA antibodies at the dermo-epidermal junction, resulting in subepithelial vesiculobullous lesions that affect the skin and mucous membranes. Despite advancements in the study of AIBDs, significant gaps persist in LABD's clinical presentation, treatment, and outcome measures due to the absence of validated, disease-specific scoring systems. The purpose of this paper is to identify any differences in disease distribution between adults and children, and to review and evaluate existing scoring tool for AIBDs. A literature search was performed using Embase and PubMed to identify relevant studies and case reports. According to the literature, adults and children had different cutaneous distributions of disease, with lesions on the perineum, hands and feet, and face more frequently reported in children. However, there was inconsistent data on whether mucous membrane lesions were more frequent in adults or children. Current scoring systems for AIBDs were also identified, with several systemic scoring systems existing in the literature that are validated in scoring AIBD severity. There is currently no literature on scoring systems specific to LABD, underscoring the need to develop and validate LABD specific tools to facilitate the development of standardized treatment guidelines and advance the understanding and management of LABD.</p>","PeriodicalId":94367,"journal":{"name":"Acta dermatovenerologica Croatica : ADC","volume":"33 1","pages":"1-8"},"PeriodicalIF":0.5,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145433272","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
<p><p>Dear Editor, Contact allergic dermatitis (CAD) and urticaria are among the most common allergic diseases in dermatovenerology (1,2). In order to diagnose CAD, it is necessary to demonstrate contact sensitization through patch testing, the presence of dermatitis, and a clinically relevant exposure to a positive allergen (1). In comparison with CAD, acute urticaria most often do not require extensive diagnostic workup, unless food or drug hypersensitivity is suspected (2). Patients presenting at a hospital with eczema and/or hives often report that they have stopped using and or have experimented with numerous fabric softeners, shampoos, bath products, detergents, and foods, having been convinced that these are the triggers for their skin conditions. Although patients and even some physicians often suspect laundry detergents, studies have shown that only a very small percentage of cases is actually linked to these products. A study from 1992 found that 26% of 3 841 patients with skin changes believed that laundry detergent was the cause (3). Similarly, a 2002 study on 738 patients with a suspicion of CAD found that 10.7% believed detergent was the cause of their skin lesions (4) This opinion was shared by 2.3% of the physicians involved in the study (4). From 2012 to 2014, out of 26 062 cases linked to powder laundry detergent, 72.2% were diagnosed with CAD (5). Numerous cosmetics ingredients that can also be found in detergents are known to be possible triggers for hives (6). However, laundry products contain substances that can potentially cause skin reactions, such as surfactants, washing enhancers, bleaches, additives (fragrances, enzymes, dyes), and preservatives. A meta-analysis found that the most common allergens that tested positive in patch tests among the general population were nickel, chromium, and fragrances (1). Although less common, preservatives such as methylchloroisothiazolinone, methylisothiazolinone, and 1,2-benzisothiazolin-3-one (BIT) and fragrances used in laundry detergents have also been reported (1,7). However, just the presence of these allergens in products is in most cases not sufficient to identify them as causes of CAD (8). Their concentration in a product, the method of application, and the residue left on clothes after washing must also be considered. A patch test on 36 individuals previously sensitized to fragrance showed that only 2 had a mildly positive reaction, and only at concentrations 20 times higher than the fragrance residue on clothing after washing (8). Similarly, BIT concentration substantial enough to cause skin changes was not detected in laundry detergent (7). When examining actual exposure to enzymes in laundry detergents, Basketter et al. concluded that there was no risk of skin reactions, either irritant or allergic (9). Different types of textiles were washed using a standard procedure and then remained on patients for 48 hours in the form of a patch test (including patients with seborrhei
{"title":"Hypersensitivity Reaction to Detergents - A Myth or Reality?","authors":"Erin Puch, Daška Štulhofer Buzina, Suzana Ljubojević Hadžavdić","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Dear Editor, Contact allergic dermatitis (CAD) and urticaria are among the most common allergic diseases in dermatovenerology (1,2). In order to diagnose CAD, it is necessary to demonstrate contact sensitization through patch testing, the presence of dermatitis, and a clinically relevant exposure to a positive allergen (1). In comparison with CAD, acute urticaria most often do not require extensive diagnostic workup, unless food or drug hypersensitivity is suspected (2). Patients presenting at a hospital with eczema and/or hives often report that they have stopped using and or have experimented with numerous fabric softeners, shampoos, bath products, detergents, and foods, having been convinced that these are the triggers for their skin conditions. Although patients and even some physicians often suspect laundry detergents, studies have shown that only a very small percentage of cases is actually linked to these products. A study from 1992 found that 26% of 3 841 patients with skin changes believed that laundry detergent was the cause (3). Similarly, a 2002 study on 738 patients with a suspicion of CAD found that 10.7% believed detergent was the cause of their skin lesions (4) This opinion was shared by 2.3% of the physicians involved in the study (4). From 2012 to 2014, out of 26 062 cases linked to powder laundry detergent, 72.2% were diagnosed with CAD (5). Numerous cosmetics ingredients that can also be found in detergents are known to be possible triggers for hives (6). However, laundry products contain substances that can potentially cause skin reactions, such as surfactants, washing enhancers, bleaches, additives (fragrances, enzymes, dyes), and preservatives. A meta-analysis found that the most common allergens that tested positive in patch tests among the general population were nickel, chromium, and fragrances (1). Although less common, preservatives such as methylchloroisothiazolinone, methylisothiazolinone, and 1,2-benzisothiazolin-3-one (BIT) and fragrances used in laundry detergents have also been reported (1,7). However, just the presence of these allergens in products is in most cases not sufficient to identify them as causes of CAD (8). Their concentration in a product, the method of application, and the residue left on clothes after washing must also be considered. A patch test on 36 individuals previously sensitized to fragrance showed that only 2 had a mildly positive reaction, and only at concentrations 20 times higher than the fragrance residue on clothing after washing (8). Similarly, BIT concentration substantial enough to cause skin changes was not detected in laundry detergent (7). When examining actual exposure to enzymes in laundry detergents, Basketter et al. concluded that there was no risk of skin reactions, either irritant or allergic (9). Different types of textiles were washed using a standard procedure and then remained on patients for 48 hours in the form of a patch test (including patients with seborrhei","PeriodicalId":94367,"journal":{"name":"Acta dermatovenerologica Croatica : ADC","volume":"33 1","pages":"42-43"},"PeriodicalIF":0.5,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145433303","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}