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Wien Klin Wochenschr. 2001 Apr 30;113(9):339-41.

Insulinoma induced hypoglycemia in a type 2 diabetic patient.

Author information

1
Department of Endocrinology, Diabetes and Metabolic Diseases, University Medical Centre, Ljubljana, Slovenia. maja.ravnik@kclj.si

Abstract

Insulinoma in a patient with pre-existing diabetes mellitus is extremely rare. We report a case of an insulinoma in a patient with type 2 diabetes mellitus who after 14 years of sulfonylurea treatment experienced recurrent episodes of hypoglycemia. Endogenous hyperinsulinism was confirmed and endoscopic ultrasonography identified a pancreatic tumor, which was positive for insulin by immuno-histological staining. After surgical excision of the tumor, no further hypoglycemic attacks occurred. Loss of body weight after removal of the tumor correlated with a dramatic reduction of insulin resistance to such a degree that diet alone proved sufficient for satisfactory glycemic control.

PMID:
11388080
[Indexed for MEDLINE]

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