Investigations. Measurement of plasma glucose, insulin, C-peptide, and β-hydroxybutyrate concentrations during a prolonged supervised fast; sulfonylurea screen; CT, MRI scan and endoscopic ...

In rare cases, the beta cells malfunction, resulting in a benign tumor called an insulinoma ... the cause or where it's located. Various scans like CT, MRI, and PET are available, but don't ...