Endoscopic Ultrasound Through-The-Needle Biopsy Diagnosis of a Pancreatic Lymphoepithelial Cyst.

We performed an EUS-TTNB (endoscopic ultrasound through-the-needle biopsy) in a 48-year-old man with an asymptomatic 4 cm pancreatic neck hypodense lesion, with inhomogeneous slight contrast enhancement. On T2-weighted magnetic resonance imaging (MRI), the lesion appeared as a complex cystic lesion with internal septa, with positive contrast enhancement. Endoscopic ultrasound (EUS) showed a septate PCL (pancreatic cystic lesion) with granular internal aspect, lobulated contours, and no visible cystic walls or mural nodules. This article is protected by copyright. All rights reserved.