Insulinoma presenting with dementia and hemiplegia.

A 23 year non-diabetic female presented with history of episodic alteration of sensorium, cognitive decline and right hemiparesis. Fasting blood glucose was found to be low on multiple occasions along with raised insulin levels. Abdominal CT scan and coeliac axis angiogram were normal. The diagnosis of insulinoma was confirmed on removal of the tumour on exploratory laprotomy. The patient was left with residual mild dementia and hemiparesis.