title: Retroperitoneal actinomycosis with intraperitoneal spread. Stellate pattern on CT.
abstract: We report a case of pathologically proved actinomycosis that presented unusual computed tomographic (CT) features: a soft-tissue retroperitoneal mass encasing the adjacent ureter resulting in hydronephrosis and spreading into the intraperitoneal space with a stellate pattern. The role of CT in monitoring the response to antibiotic treatment is also discussed.
authors: Department of Diagnostic Radiology, Chang Gung Memorial Hospital, Kaohsiung Hsien, Taiwan, Republic of China.
authors: S F
authors: SF
authors: Ko
authors: S H
authors: SH
authors: Ng
authors: T Y
authors: TY
authors: Lee
authors: C W
authors: CW
authors: Lo
mesh_terms: D000196:Actinomycosis / Q000000981:diagnostic imaging*; D000368:Aged; D005260:Female; D006801:Humans; D010532:Peritoneal Diseases / Q000000981:diagnostic imaging; D012187:Retroperitoneal Space / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed; D014513:Ureter / Q000000981:diagnostic imaging