title: Autoimmune Pancreatitis Diagnosed with Core Biopsy Obtained from a Novel Fork-Tip EUS Needle.
abstract: The endoscopic diagnosis of autoimmune pancreatitis from histologic criteria remains challenging as it requires adequate architectural details rather than cytology alone. A 67-year-old man presented with progressive abdominal pain and weight loss. Cross-sectional imaging showed inflammatory changes of the pancreatic body and tail and periaortitis on abdominal computed tomography, but normal serum immunoglobulin G4. A mass-like lesion of the pancreatic body and tail was identified on endoscopic ultrasonography. A histologic diagnosis of autoimmune pancreatitis was accomplished through needle biopsy using a novel fork-tip needle.
authors.affiliation: Division of Gastroenterology, Department of Medicine, University of Michigan Health Systems, Ann Arbor, MI.
authors.forename: Tossapol
authors.initials: T
authors.lastname: Kerdsirichairat
authors.affiliation: Division of Gastroenterology, Department of Medicine, University of Michigan Health Systems, Ann Arbor, MI.
authors.forename: Sameer D
authors.initials: SD
authors.lastname: Saini
authors.affiliation: Department of Pathology, University of Michigan Health Systems, Ann Arbor, MI.
authors.forename: Priscilla R
authors.initials: PR
authors.lastname: Chamberlain
authors.affiliation: Division of Gastroenterology, Department of Medicine, University of Michigan Health Systems, Ann Arbor, MI.
authors.forename: Anoop
authors.initials: A
authors.lastname: Prabhu