Akbulut, SamiCakabay, BahriSezgin, ArsenalOzmen, Cihan AkgulIsen, KenanBakir, Cetin2024-04-242024-04-2420091042-40671557-7724https://doi.org/10.1089/gyn.2009.0012https://hdl.handle.net/11468/17165Purpose: In this article, we present a case of actinomycosis causing fibrosis and bilateral obstructive uropathy. Methods: A 43-year-old woman was admitted to the hospital with left flank pain. Abdominal computed tomography showed bilateral hydroureteronephrosis and a malignant mass. The fine-needle aspiration biopsy was reported as retroperitoneal fibrosis. Stents were placed in both ureters. Two (2) months later, laparotomy revealed a mass located just below the origin of the inferior mesenteric artery. Bilateral ureterolysis and sigmoid colon resection was performed. Results: The pathology report was fibrosis and actinomycosis. She was given parenteral crystallized penicillin 4 x 5 million units/day for 21 days, followed by oral cotrimoxazole (960 mg) for 6 months. Conclusions: Because actinomycosis was not diagnosed either radiologically or pathologically, the patient underwent immunosuppressive therapy for 2 months preoperatively.eninfo:eu-repo/semantics/closedAccess[No Keyword]Article2527982WOS:0002173672000072-s2.0-7795799847110.1089/gyn.2009.0012Q4N/A