Epidermoid Cyst in an Intrapancreatic Accessory Spleen Diagnosed by Typical Radiographic Images and Endoscopic Ultrasound Fine-Needle Aspiration Findings With Contrast Agent

A 40-year-old woman was referred to our hospital for detailed examination of a cystic lesion in the pancreas revealed by abdominal ultrasound at a health checkup. She was asymptomatic. Cancer antigen 19-9 and carcinoembryonic antigen values were normal. Contrast-enhanced computed tomography (CE-CT) showed a 15-mm multilocular cystic lesion in the pancreatic tail. The periphery of the lesion was solid (arrow), with the same enhancement as the spleen in the early arterial phase (Figure  A). On magnetic resonance imaging (MRI), the lesion’s cystic portion showed a high signal both on T1- (Figure B, arrow) and T2-weighted images (Figure C, arrow); thus the content was considered to be mucinous or bloody liquid.
Source: Clinical Gastroenterology and Hepatology - Category: Gastroenterology Authors: Tags: Electronic image of the Month Source Type: research