BRUNNER GLAND ADENOMA MASQUERADING AS DUODENAL GASTROINTESTINAL STROMAL TUMOR WITH INTUSSUSCEPTION: CASE REPORT

INTRODUCTION

Brunner gland adenoma (Brunerroma or hamartoma) is a rare, benign lesion of the Brunner's glands, accounting for 10.6% of benign duodenal tumors¹⁰. It is predominantly seen in the 5^th to 6^th decades and with no gender predilection¹³. It is often an incidental finding during esophagogastroduodenoscopy or imaging studies. In symptomatic patients, clinical manifestations include gastrointestinal bleeding, duodenal obstruction, abdominal pain, ampullary obstruction, or intussusception^8,9. Given their potential to be mistaken as cancer, it is important to consider it in the differential diagnosis of duodenal masses¹⁴. As there have been reports of focal cellular atypia and adenocarcinoma within the lesion, resection, whether endoscopic or surgical is recommended for suspected Brunneromas³.

We report here a case of Brunneroma, which presented as gastrointestinal stromal tumor (GIST) with intussusception on radiological and endoscopic studies and brief review of literature.