@article{oai:soar-ir.repo.nii.ac.jp:00008072, author = {Fujinaga, Yasunari and Kadoya, Masumi and Kawa, Shigeyuki and Hamano, Hideaki and Ueda, Kazuhiko and Momose, Mitsuhiro and Kawakami, Satoshi and Yamazaki, Sachie and Hatta, Tomoko and Sugiyama, Yukiko}, issue = {2}, journal = {EUROPEAN JOURNAL OF RADIOLOGY}, month = {Nov}, note = {Purpose: Autoimmune pancreatitis is a unique form of chronic pancreatitis characterized by a variety of extra-pancreatic involvements which are frequently misdiagnosed as lesions of corresponding organs. The purpose of this study was to clarify the diagnostic imaging features of extra-pancreatic lesions associated with autoimmune pancreatitis. Materials and methods: We retrospectively analyzed diagnostic images of 90 patients with autoimmune pancreatitis who underwent computer-assisted tomography, magnetic resonance imaging, and/or gallium-67 scintigraphy before steroid therapy was initiated. Results: AIP was frequently (92.2%) accompanied by a variety of extra-pancreatic lesions, including swelling of lachrymal and salivary gland lesions (47.5%), lung hilar lymphadenopathy (78.3%), a variety of lung lesions (51.2%), wall thickening of bile ducts (77.8%), peri-pancreatic or para-aortic lymphadenopathy (56.0%), retroperitoneal fibrosis (19.8%), a variety of renal lesions (14.4%), and mass lesions of the ligamentum teres (2.2%). Characteristic findings in CT and MRI included lymphadenopathies of the hilar, peri-pancreatic, and para-aortic regions; wall thickening of the bile duct; and soft tissue masses in the kidney, ureters, aorta, paravertebral region, ligamentum teres, and orbit. Conclusions: Recognition of the diagnostic features in the images of various involved organs will assist in the diagnosis of autoimmune pancreatitis and in differential diagnoses between autoimmune pancreatitis-associated extra-pancreatic lesions and lesions due to other pathologies., Article, EUROPEAN JOURNAL OF RADIOLOGY. 76(2):228-238 (2010)}, pages = {228--238}, title = {Characteristic findings in images of extra-pancreatic lesions associated with autoimmune pancreatitis}, volume = {76}, year = {2010} }