Journal of Medical Case Reports最新文献

Background: Insertable cardiac monitor implantation is a simple and safe procedure commonly performed in patients with embolic stroke with undetermined source. Routine periprocedural antibiotic use is not recommended, because infection rate is very low, although some local infection or gram-positive bacteremia have been reported. We report a case of Pseudomonas monteilii sepsis immediately after insertable cardiac monitor implantation.

Case presentation: A 55-year-old Korean male with embolic stroke of undetermined source presented with gram-negative sepsis immediately after implantable cardiac monitor implantation as a first reported complication after the procedure. Pseudomonas monteilii was identified in the blood culture, and no other infection source was seen. He was treated with intravenous antibiotics without removing the device.

Conclusions: Prompt diagnosis and adequate management is required in such a patient with sepsis post-insertable cardiac monitor implantation procedure. It can be managed with adequate antibiotic treatment without device removal if there is no sign of inflammation at the insertion site. Further reports or studies should be investigated to reinforce this finding.

Learning objectives: The infection rate after insertable cardiac monitor insertion is extremely low; however, sepsis may occur without pocket infections. Physicians should be aware of signs of systemic infection, particularly when the procedure is performed outside the catheterization room. Sepsis after insertable cardiac monitor implantation can be managed with adequate antibiotic treatment without device removal if there is no sign of inflammation at the insertion site.

Introduction and importance: Spontaneous coronary artery dissection is a rare cause of acute coronary syndromes not related to atherosclerosis. It involves the sudden tearing of the coronary artery wall, separating the inner intimal lining from the outer vessel wall, typically affecting a single coronary vessel. In 20% of cases, the cause of spontaneous coronary artery dissection is unknown. The other cases often occur in pregnant or postpartum women or in individuals with conditions such as connective tissue disorders or vasculitis.

Case presentation: Here, we describe a case of a 69-year-old African female presenting with non-ST-segment elevation myocardial infarction. Coronary angiography revealed an unusual triple-vessel spontaneous coronary artery dissection affecting peripheral segments, with further investigations suggesting polyarteritis nodosa.

Conclusion: While triple-vessel spontaneous coronary artery dissection and polyarteritis nodosa (PAN) are individually rare, their coexistence is exceptionally uncommon and presents diagnostic and therapeutic challenges. Clinicians should be alert to vasculitic causes in patients with spontaneous coronary artery dissection, especially with atypical clinical features.

Background: Leukocytosis and thrombocytosis often follow splenectomy in blunt trauma patients, complicating the postoperative identification of infection. While the platelet count to white blood cell ratio provides diagnostic assistance to discern between expected laboratory alterations and infection, diagnoses such as leukemia are often overlooked.

Case presentation: A 53-year-old Hispanic male presented with abdominal pain, nausea, tachycardia, and focal peritonitis 4 days after being assaulted and struck multiple times in the abdomen. Initial white blood cell count was 38.4 × 10⁹/L, platelet count was 691 × 10⁹/L, and lipase was 55 U/L. Computed tomography abdomen/pelvis demonstrated a hematoma encasing the distal pancreas and abutting the stomach and colon. Emergent laparotomy revealed a nearly transected pancreas and devascularized colon, necessitating a distal pancreatectomy, splenectomy, and colonic resection with primary anastomosis. Postoperatively, he had a persistently elevated leukocytosis, thrombocytosis, segmented neutrophils, eosinophilia, and basophilia (peak at 70, 2293, 64, 1.1, and 1.2 × 10⁹/L, respectively). Despite sepsis workup, including repeat computed tomography, no source was identified. Hematology/oncology was consulted for concern for hematologic etiology, with genetic testing and bone marrow biopsy performed. The diagnosis of breakpoint cluster-Abelson gene-positive chronic myeloid leukemia was made based on genetic tests, including polymerase chain reaction and fluorescence in situ hybridization analysis, which confirmed the presence of the Philadelphia chromosome. Bone marrow biopsy suggested a chronic phase. The patient was treated with hydroxyurea and transitioned to imatinib.

Conclusions: Thrombocytosis following splenectomy is a common complication and a plate count to white blood cell count ratio  < 20 indicates infectious etiology. A significantly elevated white blood cell count (> 50 × 10⁹/L) and thrombocytosis (> 2000 × 10⁹/L) may suggest something more ominous, including chronic myeloid leukemia , particularly when elevated granulocyte counts are present. Chronic myeloid leukemia workup includes peripheral smear, bone marrow aspiration, and determination of Philadelphia chromosome. Post-splenectomy vaccines are still indicated within 14 days; however, the timing of immunization with cancer treatment must be considered. Tyrosine kinase inhibitors are the first-line therapy and benefits of pretreatment with hydroxyurea for cytoreduction remain under investigation. Additionally, tyrosine kinase inhibitors have been associated with gastrointestinal perforation and impaired wound healing, necessitating heightened attention in patients with a new bowel anastomosis.

Introduction: Cetuximab, used to treat head and neck squamous cell carcinoma and metastatic colorectal cancer, can cause severe infusion reactions.

Case presentation: We report an 87-year-old East Asian woman with stage IV ileocecal signet ring cell carcinoma who experienced severe allergic reactions to cetuximab despite pre-treatment. A dose escalation method, involving weekly incremental doses with comprehensive pre-treatment and close monitoring, was employed, successfully reducing allergic reactions and allowing safe administration.

Conclusion: This approach demonstrates a viable alternative for patients with hypersensitivity to cetuximab, warranting further research for personalized treatment optimization.

Background: Maturity onset diabetes of the young is one of the commonest causes of monogenic diabetes and can easily be mistaken for type 1 diabetes. A diagnosis of maturity onset diabetes of the young can have direct implications for genetic counseling, family screening, and precision diabetes treatment. However, the cost of genetic testing and identifying individuals to test are the main challenges for diagnosis and management in sub-Saharan Africa. We report the very first documented case of HNF1A maturity onset diabetes of the young in the sub-Saharan African region.

Case presentation: A 20-year-old female Black African young adult diagnosed with type 1 diabetes aged 14 presented for routine out-patient diabetes consultation. She was on multiple daily insulin injections; total combined dose 0.79 IU/kg/day with an HbA1c of 7.7%. The rest of her laboratory examinations were normal. On extended laboratory analysis, she had good residual insulin secretion with post-meal plasma C-peptide levels at 1150 pmol/L. She tested negative for glutamic acid decarboxylase (GAD65), islet antigen-2 (IA-2), and zinc transporter 8 (ZnT8) islet autoantibodies. Targeted next-generation sequencing (t-NGS) for monogenic diabetes was performed using DNA extracted from a buccal sample. She was diagnosed with HNF1A maturity onset diabetes of the young, with the c.607C > T; p.(Arg203Cys) pathogenic variant, which has never been reported in sub-Saharan Africa. Her clinical practitioners provided genetic and therapeutic counseling. Within 10 months following the diagnosis of maturity onset diabetes of the young, she was successfully switched from multiple daily insulin injections to oral antidiabetic tablets (sulphonylurea) while maintaining stable glycemic control (HBA1c of 7.0%) and reducing hypoglycemia. She expressed a huge relief from the daily finger pricks for blood glucose monitoring.

Conclusion: This case reveals that HNF1A maturity onset diabetes of the young (and probably other causes of monogenic diabetes) can present in sub-Saharan Africa. A diagnosis of maturity onset diabetes of the young can have significant life-changing therapeutic implications.

Background: Heart failure is a clinical syndrome characterized by decreased cardiac output, leading to systemic organ hypoxia and resulting in dyspnea, pulmonary edema, organ congestion, and pleural effusion. Owing to the diverse clinical manifestations of heart failure, early diagnosis can be challenging, and misdiagnosis may occur occasionally. The use of echocardiography and blood brain natriuretic peptide can aid in obtaining a more accurate diagnosis.

Case presentation: This article presents two case reports of patients who were misdiagnosed with acute cholecystitis. Both patients were young Mongolia males (age 26 and 39 years) who presented to the emergency department with acute upper abdominal pain, abdominal ultrasound revealed gallbladder enlargement, and blood tests suggested mild elevation of bilirubin levels. However, despite the absence of procalcitonin and C-reactive protein elevation, the patients were admitted to the general surgical department with a diagnosis of "acute cholecystitis." Both patients were given treatment for cholecystitis, but their vital signs did not improve, while later examinations confirmed heart failure. After treatment with diuretics and cardiac glycosides, both patients' symptoms were relieved.

Conclusion: We aim to highlight the clinical manifestations of heart failure and differentiate it from rare conditions such as acute cholecystitis. Physicians should make accurate diagnoses on the basis of physical examinations, laboratory testing and imaging, and surveys while avoiding diagnostic heuristics or mindsets. By sharing these two case reports, we hope to increase awareness to prevent potential complications and improve patient outcomes.

Background: Diffuse large B-cell lymphoma is the most common subtype of non-Hodgkin lymphomas that remains a major diagnostic challenge due to the variety of its clinical presentations. This case highlights the importance of early biopsy of oral lesions without tendency to heal to attain the diagnosis more quickly. To the best of our knowledge, this study is the first to focus on both oral and pulmonary involvements in a patient with diffuse large B-cell lymphoma.

Case presentation: The presented case describes an Iranian 18-year-old girl with chronic cough and dyspnea referred for evaluation of the upper jaw due to bone exposure, bone loss, and soft tissue ulceration. Her medical history revealed mediastinal mass, cavitary lesion, and mediastinal lymphadenopathy. However, cytologic and immunohistochemical analysis did not show any evidence of malignancy. In this case a lymphoproliferative disease was suspected but ultimately the oral biopsy diagnosed diffuse large B-cell lymphoma and chemotherapy could be started.

Conclusions: Systemic conditions should be considered as a possible cause of oral lesions and a biopsy should also be performed immediately if there is any doubt concerning the nature of the lesion. Moreover, some conditions necessitate multiple biopsies to attain an accurate diagnosis.

Introduction: Gastric antral vascular ectasia is an uncommon clinical disease that affects elder people and is characterized by severe chronic upper gastrointestinal bleeding mainly affecting the gastric antrum. It is generally unusual among patients undergoing maintenance hemodialysis for chronic kidney disease.

Case presentation: Here, we aim to present an uncommon case of incidental diagnosis of the gastric antral vascular ectasia and erosive gastritis in a 71-year-old Hindu male patient belonging to the Gurung ethnicity of Nepal undergoing maintenance hemodialysis due to chronic kidney disease. The patient presented with a history of melena and fatigue. On investigation, a low hemoglobin level of 7.3 gm% was used for blood transfusion. The patient was on regular hemodialysis after admission at our institution. Upper gastrointestinal bleeding was suspected after analyzing patient's history and investigations. Therefore, an upper gastrointestinal endoscopy was performed that showed linear ectatic punctuate lesions radiating from the body of the stomach to the antrum, and hence, an incidental diagnosis of the gastric antral vascular ectasia was made. Initial fluid resuscitation, iron therapy, and a triple regimen were administered. Proper management with argon plasma coagulation therapy was scheduled at another institution due to lack of respective facilities in our institution.

Discussion: Gastric antral vascular ectasia is an unusual cause of upper gastrointestinal bleeding, primarily affecting the gastric antrum and pylorus with rare cases affecting the duodenum, jejunum, and gastric fundus. It is generally associated with other chronic disease conditions. Several hypotheses have been proposed for the pathogenesis of gastric antral vascular ectasia, especially its association with chronic kidney disease, as in our case, which is considered to be rare. Management varies from medical to endoscopic interventions to even surgery.

Conclusion: Prompt proper diagnosis and treatment for the gastric antral vascular ectasia should be sought, as it is frequently misdiagnosed or missed during upper gastrointestinal endoscopy. Our case report presents a case of gastric antral vascular ectasia in chronic kidney disease undergoing maintenance hemodialysis, which is quite uncommon, as literature has suggested the same point.

Background: Achalasia is characterized as an esophageal motility disorder with incomplete relaxation of the lower esophageal sphincter. Achalasia can be associated with abnormal peristalsis and symptoms of dysphagia, acid reflux, and chest pain. The exact pathophysiology of achalasia remains unclear, but it is hypothesized to be due to degeneration of the myenteric plexus.

Case presentation: In this case, a 46-year-old Hispanic man presented to the emergency room with a 12-year history of progressive discomfort with swallowing solids and liquids. Due to many years of incomplete follow-up care and lack of understanding of the course of his disease, this patient's symptoms escalated to complete intolerance of oral intake and significant weight loss. He was diagnosed with achalasia during his hospital stay and treated successfully with laparoscopic Heller myotomy.

Conclusions: This case discussion illustrates the importance of follow-up care and patient education so that diagnosis and treatment of achalasia are not delayed.