title: Perirenal fat necrosis secondary to hemorrhagic pancreatitis, mimicking retroperitoneal liposarcoma: CT manifestation.
abstract: A case of resolving hemorrhagic pancreatitis resulting in massive left perirenal fat necrosis is reported. CT revealed a huge fat-containing mass that was thought to be retroperitoneal liposarcoma before operation. Pancreatitis with perirenal involvement is rarely encountered as a retroperitoneal mass.
authors.affiliation: Department of Medical Imaging, National Taiwan University Hospital, No. 7, Chung-Shan South Road, Taipei, Taiwan, Republic of China.
authors.forename: H
authors.initials: H
authors.lastname: Chen
authors.forename: Y
authors.initials: Y
authors.lastname: Tsang
authors.forename: C
authors.initials: C
authors.lastname: Wu
authors.forename: C
authors.initials: C
authors.lastname: Su
authors.forename: J C
authors.initials: JC
authors.lastname: Hsu
mesh_terms: D000208:Acute Disease; D003937:Diagnosis, Differential; D005218:Fat Necrosis / Q000000981:diagnostic imaging* / Q000209:etiology; D005260:Female; D006470:Hemorrhage / Q000150:complications; D006801:Humans; D007668:Kidney / Q000000981:diagnostic imaging*; D008080:Liposarcoma / Q000000981:diagnostic imaging*; D008875:Middle Aged; D010195:Pancreatitis / Q000150:complications*; D012186:Retroperitoneal Neoplasms / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed