LAUSR

We report a case of high grade pancreatic intraepithelial neoplasia diagnosed by endoscopic ultrasound-guided fine needle aspiration (EUS-FNA) ( ▶ Video 1 ). The patient was a 68-year-old man who came for a checkup.Main pancreatic duct (MPD) dilatation was observed on abdominal ultrasonography. His tumor marker levels were normal. Contrast-en-hanced computed tomography showed a dilated caudal MPD and pancreatic parenchyma atrophy, consistent with the interruption of the MPD in the pancreatic body ( ▶ Fig.1 ). Magnetic resonance chol-angiopancreatography revealed caudal MPD dilatation and a small cystic lesion around the MPD stenosis. Endoscopic ultrasound (EUS) showed a faint 10-mm hypoechoic area around the pancreatic duct with indistinct borders, irregular contours, and heterogeneous internal echogenicity. classified