Endocrine Abstracts

Insulinoma represents one of the most encountered neuroendocrine tumors, but only 4–14% is malignant. The diagnosis is suggested by high serum insulin levels during spontaneous or induced episodes of hypoglycemia and often invasion of lymph nodes and liver metastasis. A 55–year–old female was referred to our center after an episode of hypoglycemia during strumectomy for multinodular goiter. Further questioning revealed few years of Metformin treatment for hyp...