Total knee replacement with mega prosthesis for periprosthetic fractures after total knee arthroplasty is related to early functional recovery, but aseptic loosening of the implant has been a major reoperation factor in the long-term outcome of total knee replacement with mega prosthesis. Extracortical bone formation caused by bone-collar interface osteointegration may decrease the probability of aseptic loosening by promoting bone formation and improving bone-implant fixation. Here, we report a case of total knee replacement using mega prosthesis with porous-coated collar showing extra bone growth without osteointegration of prosthesis and leading to aseptic loosening.
{"title":"A case of aseptic loosening after total knee replacement with porous-coated mega prosthesis despite progression of extra bone growth","authors":"Ryota Miyamoto MD , Yasushi Goto MD , Toshitaka Fujito MD, PhD , Hirohito Abe MD, PhD , Yasuo Kunugiza MD, PhD","doi":"10.1016/j.radcr.2025.01.019","DOIUrl":"10.1016/j.radcr.2025.01.019","url":null,"abstract":"<div><div>Total knee replacement with mega prosthesis for periprosthetic fractures after total knee arthroplasty is related to early functional recovery, but aseptic loosening of the implant has been a major reoperation factor in the long-term outcome of total knee replacement with mega prosthesis. Extracortical bone formation caused by bone-collar interface osteointegration may decrease the probability of aseptic loosening by promoting bone formation and improving bone-implant fixation. Here, we report a case of total knee replacement using mega prosthesis with porous-coated collar showing extra bone growth without osteointegration of prosthesis and leading to aseptic loosening.</div></div>","PeriodicalId":53472,"journal":{"name":"Radiology Case Reports","volume":"20 4","pages":"Pages 1900-1903"},"PeriodicalIF":0.0,"publicationDate":"2025-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11786797/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143082043","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
We report a previously fit and well lady in her 50s who was referred to our tertiary center sarcoma multi-disciplinary team (MDT) after a magnetic resonance imaging (MRI) report from another center raised concern over a sarcoma in the left quadratus femoris muscle. MDT review suggested this was more in keeping with an acute muscle tear and after follow up MRI showed significant improvement in appearances, the patient was discharged with a diagnosis of a left quadratus femoris muscle injury. Quadratus femoris muscle injuries have not been widely reported in literature, and most papers describe an impingement of the muscle or tendinitis rather than a tear. This is an unusual case where an equivocal initial impression led to sarcoma MDT referral and highlights the value of clinical correlation and follow up imaging.
{"title":"Quadratus femoris muscle injury mimicking a sarcoma","authors":"Georgia Hyde MBChB, MSc, Nikhil Kotnis MBChB, FRCR","doi":"10.1016/j.radcr.2025.01.036","DOIUrl":"10.1016/j.radcr.2025.01.036","url":null,"abstract":"<div><div>We report a previously fit and well lady in her 50s who was referred to our tertiary center sarcoma multi-disciplinary team (MDT) after a magnetic resonance imaging (MRI) report from another center raised concern over a sarcoma in the left quadratus femoris muscle. MDT review suggested this was more in keeping with an acute muscle tear and after follow up MRI showed significant improvement in appearances, the patient was discharged with a diagnosis of a left quadratus femoris muscle injury. Quadratus femoris muscle injuries have not been widely reported in literature, and most papers describe an impingement of the muscle or tendinitis rather than a tear. This is an unusual case where an equivocal initial impression led to sarcoma MDT referral and highlights the value of clinical correlation and follow up imaging.</div></div>","PeriodicalId":53472,"journal":{"name":"Radiology Case Reports","volume":"20 4","pages":"Pages 1909-1914"},"PeriodicalIF":0.0,"publicationDate":"2025-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11787551/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143082164","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-01-18DOI: 10.1016/j.radcr.2025.01.003
Ibrahim Fathallah , Ayham Qatza , Ahmed Al-Talep , Reham Yousef , Rami Asef Hasn
Complete heart block (CHB) is a disruption in electrical impulses to travel from atria to ventricles and can rarely be caused by myocardial bridging (MB), where cardiac tissue compresses a coronary artery during systole. The incidence of MB ranges from 0.5 % to 16 % in coronary angiography patients. This case report presents a 30-year-old female presented with dizziness, shortness of breath, and chest pain, diagnosed with third-degree AV block. Echocardiography revealed interventricular septal thickening and mild mitral regurgitation. Coronary angiography identified myocardial bridging in the mid LAD artery causing significant systolic stenosis. After ruling out reversible causes, a dual-chamber permanent pacemaker was implanted due to persistent heart block. The patient remained stable postprocedure, with decreasing cardiac biomarkers, and was discharged symptom-free with a follow-up appointment scheduled. MB can lead to serious cardiovascular events, including myocardial infarction and CHB. Clinicians must recognize the risks associated with MB and maintain a high suspicion for CHB to ensure timely management. Further studies are needed to clarify the CHB-MB relationship and improve patient outcomes.
{"title":"A rare case of myocardial bridging as a cause of complete heart block: A diagnostic challenge","authors":"Ibrahim Fathallah , Ayham Qatza , Ahmed Al-Talep , Reham Yousef , Rami Asef Hasn","doi":"10.1016/j.radcr.2025.01.003","DOIUrl":"10.1016/j.radcr.2025.01.003","url":null,"abstract":"<div><div>Complete heart block (CHB) is a disruption in electrical impulses to travel from atria to ventricles and can rarely be caused by myocardial bridging (MB), where cardiac tissue compresses a coronary artery during systole. The incidence of MB ranges from 0.5 % to 16 % in coronary angiography patients. This case report presents a 30-year-old female presented with dizziness, shortness of breath, and chest pain, diagnosed with third-degree AV block. Echocardiography revealed interventricular septal thickening and mild mitral regurgitation. Coronary angiography identified myocardial bridging in the mid LAD artery causing significant systolic stenosis. After ruling out reversible causes, a dual-chamber permanent pacemaker was implanted due to persistent heart block. The patient remained stable postprocedure, with decreasing cardiac biomarkers, and was discharged symptom-free with a follow-up appointment scheduled. MB can lead to serious cardiovascular events, including myocardial infarction and CHB. Clinicians must recognize the risks associated with MB and maintain a high suspicion for CHB to ensure timely management. Further studies are needed to clarify the CHB-MB relationship and improve patient outcomes.</div></div>","PeriodicalId":53472,"journal":{"name":"Radiology Case Reports","volume":"20 4","pages":"Pages 1882-1887"},"PeriodicalIF":0.0,"publicationDate":"2025-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11786798/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143082108","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-01-18DOI: 10.1016/j.radcr.2025.01.014
Mohammed Khalaf , Yaroslava von Rymon Lipinski , Azar Vagifsoy , Peter Wack , Dimitri Schari , Sascha Herber
Persistent sciatic artery (PSA) aneurysms are rare vascular anomalies that can lead to significant clinical complications. This case report details the diagnosis, initial management, and long-term follow-up of a 66-year-old female patient who presented with progressive right gluteal pain. Diagnostic imaging at the initial hospital visit identified a 6.5 cm saccular aneurysm in the right sciatic artery. The patient underwent endovascular repair using a Vascutek Anaconda stent graft limb (Terumo, Florida, USA) via a femoral access. Four years later, a recurrence of the aneurysm was detected at the distal end of the stent graft, measuring 3.5 cm. Endovascular treatment, including stent extension, was successfully performed. The patient was discharged in stable condition with a recommendation for 6-month follow-up imaging. This case underscores the importance of advanced imaging for accurate diagnosis and the efficacy of endovascular techniques in managing PSA aneurysms. The recurrence highlights the need for ongoing surveillance and tailored interventions. This case contributes to the limited literature on PSA aneurysms and offers insights into effective management strategies. It emphasizes that persistent sciatic artery aneurysms require a multidisciplinary approach and careful long-term follow-up, with endovascular techniques, combined with cross-sectional imaging, providing effective management that improves patient outcomes.
{"title":"Aneurysm of the sciatic artery: A rare case report","authors":"Mohammed Khalaf , Yaroslava von Rymon Lipinski , Azar Vagifsoy , Peter Wack , Dimitri Schari , Sascha Herber","doi":"10.1016/j.radcr.2025.01.014","DOIUrl":"10.1016/j.radcr.2025.01.014","url":null,"abstract":"<div><div>Persistent sciatic artery (PSA) aneurysms are rare vascular anomalies that can lead to significant clinical complications. This case report details the diagnosis, initial management, and long-term follow-up of a 66-year-old female patient who presented with progressive right gluteal pain. Diagnostic imaging at the initial hospital visit identified a 6.5 cm saccular aneurysm in the right sciatic artery. The patient underwent endovascular repair using a Vascutek Anaconda stent graft limb (Terumo, Florida, USA) via a femoral access. Four years later, a recurrence of the aneurysm was detected at the distal end of the stent graft, measuring 3.5 cm. Endovascular treatment, including stent extension, was successfully performed. The patient was discharged in stable condition with a recommendation for 6-month follow-up imaging. This case underscores the importance of advanced imaging for accurate diagnosis and the efficacy of endovascular techniques in managing PSA aneurysms. The recurrence highlights the need for ongoing surveillance and tailored interventions. This case contributes to the limited literature on PSA aneurysms and offers insights into effective management strategies. It emphasizes that persistent sciatic artery aneurysms require a multidisciplinary approach and careful long-term follow-up, with endovascular techniques, combined with cross-sectional imaging, providing effective management that improves patient outcomes.</div></div>","PeriodicalId":53472,"journal":{"name":"Radiology Case Reports","volume":"20 4","pages":"Pages 1888-1892"},"PeriodicalIF":0.0,"publicationDate":"2025-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11786800/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143082077","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Contrast-induced encephalopathy (CIE) is a rare complication associated with the use of iodine-based contrast agents and can be severe in some cases. In such cases, symptoms of encephalopathy, seizures, and neurological deficits appear shortly after contrast administration. This case report discusses a 90-year-old woman who developed severe CIE after iodine contrast agent administration. The patient underwent contrast enhanced computed tomography (CT) and left lower extremity angioplasty 2 days later. The patient's level of consciousness decreased the day after angioplasty; CT and magnetic resonance imaging (MRI) scans suggested CIE. Although the patient was treated with dialysis, but passed away 2 days after onset. Head CT at the time of onset showed extensive high-density area in the cerebral sulci. However, the distribution was different from typical subarachnoid hemorrhage due to ruptured aneurysm; subsequent MRI showed no evidence of subarachnoid hemorrhage. Therefore, CIE was suspected, rather than hemorrhage. A head dual-energy (DE)-CT, which can non-invasively assess the presence of intracranial iodine, was planned for diagnosing CIE. Although her poor condition made it difficult to performed prior to the death, so postmortem DE-CT was performed and confirmed the presence of iodine intracranially. This case suggests considering CIE in patients who develop impaired consciousness after contrast agents use, even when the contrast agents are not directly injected into cerebral blood vessels. In suspected CIE cases, DE-CT is useful for distinguishing iodine from hemorrhage.
{"title":"Severe contrast-induced encephalopathy diagnosed with postmortem dual-energy CT in an elderly patient","authors":"Hitomi Ueda MD , Keiichi Kikuchi MD, PhD , Yusuke Kobayashi MD , Daisuke Matsuda MD, PhD , Terutoshi Yamaoka MD, PhD","doi":"10.1016/j.radcr.2024.12.065","DOIUrl":"10.1016/j.radcr.2024.12.065","url":null,"abstract":"<div><div>Contrast-induced encephalopathy (CIE) is a rare complication associated with the use of iodine-based contrast agents and can be severe in some cases. In such cases, symptoms of encephalopathy, seizures, and neurological deficits appear shortly after contrast administration. This case report discusses a 90-year-old woman who developed severe CIE after iodine contrast agent administration. The patient underwent contrast enhanced computed tomography (CT) and left lower extremity angioplasty 2 days later. The patient's level of consciousness decreased the day after angioplasty; CT and magnetic resonance imaging (MRI) scans suggested CIE. Although the patient was treated with dialysis, but passed away 2 days after onset. Head CT at the time of onset showed extensive high-density area in the cerebral sulci. However, the distribution was different from typical subarachnoid hemorrhage due to ruptured aneurysm; subsequent MRI showed no evidence of subarachnoid hemorrhage. Therefore, CIE was suspected, rather than hemorrhage. A head dual-energy (DE)-CT, which can non-invasively assess the presence of intracranial iodine, was planned for diagnosing CIE. Although her poor condition made it difficult to performed prior to the death, so postmortem DE-CT was performed and confirmed the presence of iodine intracranially. This case suggests considering CIE in patients who develop impaired consciousness after contrast agents use, even when the contrast agents are not directly injected into cerebral blood vessels. In suspected CIE cases, DE-CT is useful for distinguishing iodine from hemorrhage.</div></div>","PeriodicalId":53472,"journal":{"name":"Radiology Case Reports","volume":"20 4","pages":"Pages 1877-1881"},"PeriodicalIF":0.0,"publicationDate":"2025-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11786802/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143082173","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This report describes the case of a 35-year-old woman with a recurrent ruptured intracranial dermoid cyst. These rare congenital lesions account for less than 1% of intracranial tumors globally. The patient was first diagnosed in her adolescence and underwent surgical excision with shunt placement at the age of 23, which provided symptom relief for 6 years. Her symptoms later recurred, including headaches, blurred vision, and progressive weakness. Imaging revealed a hemorrhagic lobulated mass that compressed the brainstem, encased vascular structures, caused a midline shift, and led to ventricular dilation. These findings suggested possible incomplete removal of the cyst wall during the initial surgery. This case highlights the challenges of diagnosing and managing recurrent intracranial dermoid cysts. It emphasizes the need for long-term monitoring, detailed imaging to assess recurrence and complications, and a multidisciplinary approach to treatment to improve outcomes.
{"title":"Progressive hemorrhagic intracranial dermoid cyst: A case report with imaging and diagnostic considerations","authors":"Parisa Pishdad MD , Amirhossein Soltani MD , Shakiba Houshi MD , Mohsen Salimi MD","doi":"10.1016/j.radcr.2025.01.011","DOIUrl":"10.1016/j.radcr.2025.01.011","url":null,"abstract":"<div><div>This report describes the case of a 35-year-old woman with a recurrent ruptured intracranial dermoid cyst. These rare congenital lesions account for less than 1% of intracranial tumors globally. The patient was first diagnosed in her adolescence and underwent surgical excision with shunt placement at the age of 23, which provided symptom relief for 6 years. Her symptoms later recurred, including headaches, blurred vision, and progressive weakness. Imaging revealed a hemorrhagic lobulated mass that compressed the brainstem, encased vascular structures, caused a midline shift, and led to ventricular dilation. These findings suggested possible incomplete removal of the cyst wall during the initial surgery. This case highlights the challenges of diagnosing and managing recurrent intracranial dermoid cysts. It emphasizes the need for long-term monitoring, detailed imaging to assess recurrence and complications, and a multidisciplinary approach to treatment to improve outcomes.</div></div>","PeriodicalId":53472,"journal":{"name":"Radiology Case Reports","volume":"20 4","pages":"Pages 1871-1876"},"PeriodicalIF":0.0,"publicationDate":"2025-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11786999/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143082163","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-01-17DOI: 10.1016/j.radcr.2024.12.054
Asmae Guennouni, Adam Sqalli Houssaini, Soukaina Bahha, Mohamed Fadil, Hassan En-Nouali, Jamal El Fenni
Gradenigo's syndrome is a rare but severe clinical condition characterized by a triad of retro-orbital pain, ipsilateral sixth cranial nerve palsy, and otorrhea, typically resulting from petrous apicitis as a complication of acute otitis media. We report the case of a young patient presenting with these symptoms, along with imaging findings of petrous apex inflammation, abscess formation, and mastoiditis. The patient was successfully treated with high-dose antibiotics and surgical drainage. This case underscores the critical importance of early diagnosis and management to prevent potentially lifethreatening complications, with radiological imaging playing a key role in identifying the condition and guiding therapeutic decisions.
{"title":"Gradenigo syndrome complicated by a retro-pharyngeal abscess in an 8-year-old child: A case report and literature review","authors":"Asmae Guennouni, Adam Sqalli Houssaini, Soukaina Bahha, Mohamed Fadil, Hassan En-Nouali, Jamal El Fenni","doi":"10.1016/j.radcr.2024.12.054","DOIUrl":"10.1016/j.radcr.2024.12.054","url":null,"abstract":"<div><div>Gradenigo's syndrome is a rare but severe clinical condition characterized by a triad of retro-orbital pain, ipsilateral sixth cranial nerve palsy, and otorrhea, typically resulting from petrous apicitis as a complication of acute otitis media. We report the case of a young patient presenting with these symptoms, along with imaging findings of petrous apex inflammation, abscess formation, and mastoiditis. The patient was successfully treated with high-dose antibiotics and surgical drainage. This case underscores the critical importance of early diagnosis and management to prevent potentially lifethreatening complications, with radiological imaging playing a key role in identifying the condition and guiding therapeutic decisions.</div></div>","PeriodicalId":53472,"journal":{"name":"Radiology Case Reports","volume":"20 4","pages":"Pages 1867-1870"},"PeriodicalIF":0.0,"publicationDate":"2025-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11787000/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143082142","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-01-16DOI: 10.1016/j.radcr.2025.01.009
Mark A. Colantonio MD, Joshua Wiley DO
Bullous emphysema, a subtype of emphysema, is characterized by the irreversible enlargement of air-filled airways greater than 1cm in size. Often time, practitioners focus on smoking duration in pack years, and smoking frequency, rather than smoking onset, when assessing risk for development of bullous emphysema. Distinct radiographic findings on CT imaging can differentiate bullae from other lung pathologies, including lung cysts. Here, we present a young female with diffuse, bullous emphysema without an extensive smoking history. We aim to highlight the importance of smoking onset when determining risk for development bullous emphysema, as well as the role of CT imaging in the diagnosis of lung pathologies.
{"title":"Severe bullous emphysema: exploring risk factors and the importance of radiography","authors":"Mark A. Colantonio MD, Joshua Wiley DO","doi":"10.1016/j.radcr.2025.01.009","DOIUrl":"10.1016/j.radcr.2025.01.009","url":null,"abstract":"<div><div>Bullous emphysema, a subtype of emphysema, is characterized by the irreversible enlargement of air-filled airways greater than 1cm in size. Often time, practitioners focus on smoking duration in pack years, and smoking frequency, rather than smoking onset, when assessing risk for development of bullous emphysema. Distinct radiographic findings on CT imaging can differentiate bullae from other lung pathologies, including lung cysts. Here, we present a young female with diffuse, bullous emphysema without an extensive smoking history. We aim to highlight the importance of smoking onset when determining risk for development bullous emphysema, as well as the role of CT imaging in the diagnosis of lung pathologies.</div></div>","PeriodicalId":53472,"journal":{"name":"Radiology Case Reports","volume":"20 4","pages":"Pages 1863-1866"},"PeriodicalIF":0.0,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11786998/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143082171","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-01-15DOI: 10.1016/j.radcr.2024.12.036
Gani Michel , Ahmad Fitrah , Atta Kuntara , M. Naseh Sajadi Budi Irawan
Chondroblastomas are rare benign cartilaginous neoplasms that primarily affect young patients. Aneurysmal bone cysts (ABCs) are also rare, accounting for 1-2% of all bone tumors, and can arise either idiopathically or as secondary lesions associated with other tumors, such as giant cell tumors or chondroblastomas. Here, we present a rare case of a secondary aneurysmal bone cyst arising in conjunction with a chondroblastoma located in the left diaphysis of the ulna.
{"title":"Chondroblastoma with secondary aneurysmal bone cyst of the diaphyseal ulna: A rare case report","authors":"Gani Michel , Ahmad Fitrah , Atta Kuntara , M. Naseh Sajadi Budi Irawan","doi":"10.1016/j.radcr.2024.12.036","DOIUrl":"10.1016/j.radcr.2024.12.036","url":null,"abstract":"<div><div>Chondroblastomas are rare benign cartilaginous neoplasms that primarily affect young patients. Aneurysmal bone cysts (ABCs) are also rare, accounting for 1-2% of all bone tumors, and can arise either idiopathically or as secondary lesions associated with other tumors, such as giant cell tumors or chondroblastomas. Here, we present a rare case of a secondary aneurysmal bone cyst arising in conjunction with a chondroblastoma located in the left diaphysis of the ulna.</div></div>","PeriodicalId":53472,"journal":{"name":"Radiology Case Reports","volume":"20 4","pages":"Pages 1858-1862"},"PeriodicalIF":0.0,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11786645/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143082139","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Renal cell carcinoma (RCC) is the most common kidney malignancy in adults. However, its presentation with orbital metastasis as the first clinical manifestation is extremely rare and can mimic several other conditions. We report the case of a 72-year-old woman with a history of hyperthyroidism, who presented with symptoms resembling thyroid ophthalmopathy. However, magnetic resonance imaging (MRI) of the orbit revealed orbital metastasis. To find the primary tumor, a surveillance computed tomography (CT) was done which showed a mass in the left kidney suggestive of RCC. Histopathological analysis of the mass confirmed clear cell RCC. Early identification of orbital metastases in RCC is crucial, as it may indicate advanced disease. Misdiagnosis due to similarities with other orbital conditions can lead to delayed treatment and suboptimal outcomes. This case highlights the pivotal role of radiological imaging in guiding the diagnosis and management of orbital metastases from RCC.
{"title":"Orbital metastasis of renal cell carcinoma masquerading as thyroid ophthalmopathy","authors":"Smrti Aravind MBBS , Dhiran Sivasubramanian MBBS , Sathwik Sanil MBBS , Sharan Prasaanth MBBS , Virushnee Senthilkumar MBBS","doi":"10.1016/j.radcr.2024.12.052","DOIUrl":"10.1016/j.radcr.2024.12.052","url":null,"abstract":"<div><div>Renal cell carcinoma (RCC) is the most common kidney malignancy in adults. However, its presentation with orbital metastasis as the first clinical manifestation is extremely rare and can mimic several other conditions. We report the case of a 72-year-old woman with a history of hyperthyroidism, who presented with symptoms resembling thyroid ophthalmopathy. However, magnetic resonance imaging (MRI) of the orbit revealed orbital metastasis. To find the primary tumor, a surveillance computed tomography (CT) was done which showed a mass in the left kidney suggestive of RCC. Histopathological analysis of the mass confirmed clear cell RCC. Early identification of orbital metastases in RCC is crucial, as it may indicate advanced disease. Misdiagnosis due to similarities with other orbital conditions can lead to delayed treatment and suboptimal outcomes. This case highlights the pivotal role of radiological imaging in guiding the diagnosis and management of orbital metastases from RCC.</div></div>","PeriodicalId":53472,"journal":{"name":"Radiology Case Reports","volume":"20 4","pages":"Pages 1812-1815"},"PeriodicalIF":0.0,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11783215/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143082157","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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