BACKGROUND: Hyperinsulinemia in multiple endocrine neoplasia type I (M
EN-I) is a rare but potentially curable condition that presents diffic
ulties not encountered in sporadic cases. METHODS: The present report
documents our surgical approach to 3 MEN-I patients with hyperinsuline
mia. RESULTS: Primary hyperparathyroidism was manifested in all 3 pati
ents at the time of presentation. Distal subtotal pancreatectomy with
enucleation of tumor at the head of pancreas detected intraoperatively
resulted in immediate cure of 2 patients. Persistent disease occurred
in 1 patient after enucleation of tumor at the head of the pancreas g
uided by preoperative imaging elsewhere. The patient was subsequently
cured by distal subtotal pancreatectomy. Pathology revealed multiple t
umors (4 to 14) in all patients. CONCLUSIONS: A different surgical str
ategy with an aim of distal subtotal pancreatectomy and enucleation of
any tumor identified in the head of pancreas is the treatment of choi
ce for hyperinsulinemia in MEN-I patients. (C) 1998 by Excerpta Medica
, Inc.