Abdominal Actinomycosis Abscess Mimicking Malignancy: A Case Report and Review of the Literature.

Abstract

Actinomycosis is a rare chronic granulomatous infection caused by Actinomyces species. We report the case of a 47-year-old man with no previous medical history, who presented with a slowly growing abdominal mass extending to the abdominal wall, initially mimicking a malignant tumor. A diagnosis of an Actinomyces abscess was confirmed through surgical resection and histopathological examination. This case is presented to highlight the morphological characteristics and emphasize the diagnostic difficulties of this disease.