Multifocal Biliary Adenoma Involving the Gallbladder and Common Bile Duct Presenting With Obstructive Jaundice: A Case Report.

Biliary adenomas are rare neoplastic processes of the gallbladder and extrahepatic biliary tree that are pre-malignant. These tumors infrequently present with obstructive jaundice, which is more suggestive of underlying invasive malignancy. Here, we present a case of multifocal biliary adenoma without invasive cancer in a 70-year-old man who presented with jaundice. Initial laboratory results and imaging suggested a malignant process, prompting surgical resection. Intraoperative findings and histopathologic examination revealed a multifocal tubulovillous adenoma involving the gallbladder and distal common bile duct. The patient ultimately underwent a curative pancreatoduodenectomy procedure. This case demonstrates multifocal biliary adenoma presenting as jaundice without underlying malignancy. Surgical treatment is necessary to relieve symptoms and prevent the progression to carcinoma.