What is the role of radiology in the diagnosis of hypoglycemia (low blood sugar)?

Updated: Sep 12, 2019
  • Author: Osama Hamdy, MD, PhD; Chief Editor: Romesh Khardori, MD, PhD, FACP  more...
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Answer

For the evaluation of insulinomas, computed tomography (CT) scanning and ultrasonography often are not helpful, because most of these tumors are small. Magnetic resonance imaging (MRI) may yield better results.

Selective percutaneous transhepatic venous sampling often is helpful for localizing an insulinoma to the head, body, or tail of the pancreas, and selective arteriography is also often helpful in localizing insulin-secreting lesions. Octreotide scanning localizes insulinomas in approximately 50% of cases.

Retroperitoneal tumors that are producing insulinlike growth factor (IGF) are usually imaged easily using a CT scan.


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