title: Autoimmune pancreatitis detected as a mass in the tail of the pancreas.
abstract: A mass in the tail of the pancreas was detected in a 62-year-old male patient who had hypergammaglobulinaemia, and was positive for antinuclear antigen and anti-SS-A antibody. Endoscopic retrograde pancreatography revealed focal irregular narrowing of the main pancreatic duct in the tail of the pancreas. Dynamic computed tomography showed swelling of the pancreatic tail, which was enhanced on delayed phase. Autoimmune pancreatitis was suspected and corticosteroid therapy was commenced. This led to significant resolution of the pancreatic stricture. It is important to recognize this clinical entity as corticosteroid therapy may avoid unnecessary surgery.
authors.affiliation: Department of Internal Medicine and Radiology, Ohtsu Red Cross Hospital, Shiga, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Taniguchi
authors.forename: S
authors.initials: S
authors.lastname: Seko
authors.forename: K
authors.initials: K
authors.lastname: Azuma
authors.forename: M
authors.initials: M
authors.lastname: Tamegai
authors.forename: O
authors.initials: O
authors.lastname: Nishida
authors.forename: F
authors.initials: F
authors.lastname: Inoue
authors.forename: M
authors.initials: M
authors.lastname: Okamoto
authors.forename: T
authors.initials: T
authors.lastname: Mizumoto
authors.forename: H
authors.initials: H
authors.lastname: Kobayashi
mesh_terms: D001323:Autoantibodies / Q000032:analysis; D001327:Autoimmune Diseases / Q000175:diagnosis* / Q000188:drug therapy / Q000276:immunology; D001707:Biopsy, Needle; D002760:Cholangiopancreatography, Endoscopic Retrograde; D003937:Diagnosis, Differential; D005938:Glucocorticoids / Q000627:therapeutic use; D006801:Humans; D008297:Male; D008875:Middle Aged; D010179:Pancreas / Q000000981:diagnostic imaging / Q000473:pathology; D010195:Pancreatitis / Q000175:diagnosis* / Q000188:drug therapy / Q000276:immunology; D011239:Prednisolone / Q000627:therapeutic use; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography
chemical_list: D001323:Autoantibodies; D005938:Glucocorticoids; D011239:Prednisolone