Ann Coloproctol.  2020 Dec;36(6):417-420. 10.3393/ac.2019.11.07.

Abdominopelvic Actinomycosis Mimicking Peritoneal Carcinomatosis: A Case Report

Affiliations
  • 1Department of Surgery, Yeungnam University Medical Center, Daegu, Korea
  • 2Department of Pathology, Yeungnam University Medical Center, Daegu, Korea

Abstract

Actinomycosis is a rare chronic bacterial infection primarily caused by Actinomyces israelii. A 47-year-old woman presented to our clinic with a 1-week history of lower abdominal pain. Preoperative imaging studies revealed multiple peritoneal and pelvic masses suggestive of malignancy. The primary tumor could not be identified despite further endoscopic and gynecological evaluation. On exploration for tissue confirmation, excisional biopsies from multiple masses were performed because complete excision was not possible. Histopathological examination confirmed actinomycosis with multiple abscesses, and the patient was treated with antibiotics. We present a case of disseminated peritoneal actinomycosis that mimicked malignant peritoneal carcinomatosis on imaging studies.

Keyword

Actinomycosis; Carcinomatosis; Intrauterine devices
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