Laparoscopic diagnosis of annular pancreas in a patient with mucinous cystoadenoma of the body of the pancreas.

INTRODUCTION: Annular pancreas (AP) is a rare anomaly due to malrotation of the pancreatic ventral bud during embryologic development. AP has been extensively described in the pediatric population; however, in adults, the incidence has been reported to be only 1 in 22,000 patients with only a few cases presenting with simultaneous mucinous cystadenoma described in the recent literature. CASE REPORT: We report the case of a 72-year-old female patient with a mucinous cystadenoma, who was found to have a concomitant AP during laparoscopic distal pancreatectomy. DISCUSSION: The dual presentation of annual pancreas and mucinous cystoadenoma is an infrequent condition and can be managed with minimally invasive techniques; bypass in adults should only be performed in patients with symptomatic duodenal compression or recurrent bouts of pancreatitis.