%0 Journal Article %T Autoimmune Pancreatitis Diagnosed with Core Biopsy Obtained from a Novel Fork-Tip EUS Needle %A Anoop Prabhu %A Priscilla R. Chamberlain %A Sameer D. Saini %A Tossapol Kerdsirichairat %J Archive of "ACG Case Reports Journal". %D 2017 %R 10.14309/crj.2017.7 %X 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 %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5247627/