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Aberrant Cytoplasmic INSM1 Expression in Erythroid Cells: A Potential Diagnostic Pitfall Versus Neuroendocrine Neoplasms.
Int J Surg Pathol
January 2025
Department of Pathology, Stanford Medical Center, Stanford, CA, USA.
Insulinoma-associated protein 1 (INSM1) is a relatively new immunostain used in the diagnostic assessment of tumors with neuroendocrine differentiation. While INSM1 positivity has been described in some non-neuroendocrine neoplasms, reactivity in red blood cells (RBCs) has only been anecdotally noted in one prior study without description of the degree/extent of staining. INSM1 staining in nucleated erythroid precursors has not been previously reported.
View Article and Find Full Text PDFMetastatic Insulinoma Managed With Continuous Glucose Monitoring in a Young Female Patient.
JCEM Case Rep
February 2025
Division of Endocrinology, Diabetes & Metabolic Diseases, Thomas Jefferson University Hospital, Philadelphia, PA 19107, USA.
Insulinomas are rare neuroendocrine neoplasms and causes of hypoglycemia. They present with neuroglycopenic symptoms, including confusion and seizures. Suspected diagnosis must be confirmed through bloodwork and imaging.
View Article and Find Full Text PDFInsulinoma; a diagnostic challenge: a case report.
J Pak Med Assoc
January 2025
Department of Endocrinology, Shaukat Khanum Cancer Memorial Hospital and Research Centre, Lahore, Pakistan.
Insulinoma is a pancreatic neuroendocrine tumour that primarily leads to episodes of hypoglycaemia due to inappropriate and excessive secretion of insulin. It classically presents with neuroglycopenic and autonomic sympathetic symptoms, which resolve promptly with glucose administration. Elevated level of insulin and Cpeptide in the presence of low plasma glucose level and absence of plasma sulfonylurea are diagnostic features.
View Article and Find Full Text PDFIncidence and risk factors for insulinoma diagnosed in dogs under primary veterinary care in the UK.
Sci Rep
January 2025
Department of Clinical Science and Services, Royal Veterinary College, Hatfield, AL9 7TA, UK.
Insulinoma is the most common pancreatic tumor diagnosed in dogs. This study aimed to report incidence risk, breed predispositions and other demographic risk factors for insulinoma diagnosed in dogs under primary veterinary care in the UK. The VetCompass Program supports research on anonymized electronic health records (EHRs) from dogs under UK veterinary care.
View Article and Find Full Text PDFUnmasking Long QT Syndrome in a Serviceman: Effects of Hypoglycemia and a Flight Duty Medical Examination.
Mil Med
January 2025
Division of Endocrinology, Diabetes and Metabolism, University of California Davis Health, Sacramento, CA 95817, USA.
We report the case of a 29-year-old male soldier with a time in service above 10 years, found to have asymptomatic long QT syndrome (LQTS), a condition associated with increased risk of potentially fatal ventricular arrhythmias, during a flight physical. A review of his past medical history revealed a transient QT prolongation during an episode of hypoglycemia due to endogenous hyperinsulinism caused by an insulinoma, as an infantryman 7 years earlier; the resolution of the QT prolongation was spontaneous. He was evaluated and considered fit for duty by cardiology.
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