title: [A case of giant peritoneal loose body: usefulness of wide window width CT].
abstract: We encountered a case of giant peritoneal loose body, which was detected on barium enema by chance. Unenhanced CT showed a round mass with calcified center. On MR examination, the mass moved to the pelvic cavity from the position at CT examination. T1- and T2-weighted images showed a mass with low signal intensity. The contrast-enhanced T1-weighted images showed no enhancement. From these findings, peritoneal loose body, in addition to teratoma, granuloma, and foreign body, was suspected. However, the wide window width CT clearly showed a concentric calcification, a finding that is characteristic of peritoneal loose body.
authors.affiliation: Department of Radiology, Osaka Medical College.
authors.forename: Daisuke
authors.initials: D
authors.lastname: Ohgitani
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Kani
authors.forename: Mitsuru
authors.initials: M
authors.lastname: Matsuki
authors.forename: Shuji
authors.initials: S
authors.lastname: Kanazawa
authors.forename: Isamu
authors.initials: I
authors.lastname: Narabayashi
mesh_terms: D000368:Aged; D002114:Calcinosis / Q000000981:diagnostic imaging*; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D010532:Peritoneal Diseases / Q000000981:diagnostic imaging*; D011856:Radiographic Image Enhancement; D014057:Tomography, X-Ray Computed / Q000295:instrumentation