Insulinoma

The endocrinologist is the specialist who guides the workup of insulinoma, a rare tumor of the pancreas that produces insulin in an uncontrolled way and can cause drops in blood sugar.

How it can present: episodes of dizziness, sweating, tremor, confusion, weakness, or intense hunger, especially when fasting or between meals, which usually improve after eating something.

Why it happens: by releasing insulin without normal regulation, this tumor disrupts the body's sugar balance and produces these repeated episodes.

Who to see? The endocrinologist coordinates the approach and, when removal of the tumor is being considered, the general surgeon takes part; the endoscopist can help locate it. If repeated episodes of low blood sugar occur, discussing it with these professionals allows the cause to be studied with the necessary clarity.