Abstract
Insulinoma is a deceptive endocrine tumour of the pancreas due to its bizarre and nonspecific symptom complex. It is also difficult to localize preoperatively, especially when present in an ectopic location. A 65 year old woman presented with recurrent episodes of hypoglycaemia. She was erroneously under treatment for psychotic disorder. A suspicion of insulinoma led us to investigate her further. Investigations revealed fasting hypoglycaemia, endogenous hyperinsulinism, and a pancreatic parenchymal lesion. On exploration, an incidental Meckel’s diverticulum with a nodule was also found. Histopathology showed an insulinoma of the Meckel’s diverticulum and a benign non-functioning adenoma in the pancreatic nodule. Surgery eventually resulted in restoration of euglycaemia and complete disappearance of patient's symptoms.
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