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Case contributed by Dr Mustafa Hammad


Recurrent headaches and lethargy, particularly with exercise or fasting. Plasma blood glucose level of 45 mg/dl, which is improved by giving glucose.

Patient Data

Age: 55 years
Gender: Male

There is a well-defined rounded lesion within the uncinate process of the pancreas. No focal liver lesions are identified.


There is a well-defined lesion returning low signal intensity in T1WI and T2WI, with mild enhancement post contrast.

Case Discussion

Insulinomas represent 70% of islet cell tumors of pancreas and are the most common type of pancreatic neuro-endocrine tumor, with an annual incidence of 1-4 cases per million people. However, localization and diagnosis of insulinomas is a challenge to surgeons and radiologists. Most of them are intrapancreatic, benign and solitary, with an excellent prognosis. There is no predilection for any particular part of the pancreas.

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Case information

rID: 47669
Published: 6th Dec 2016
Last edited: 4th Oct 2020
Inclusion in quiz mode: Included

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