Spontaneous Bacterial Peritonitis Because of Actinomyces.

Actinomycosis is a rare chronic granulomatous disease that manifests with nonspecific symptoms of abdominal pain, anorexia, and weight loss. The disparity in the presentation of this condition presents a tremendous diagnostic challenge. There are few reports of Actinomyces species causing spontaneous bacterial peritonitis without previous localized masses or abscesses have been published. We provide a case of spontaneous bacterial peritonitis secondary to Actinomyces species in a 46-year-old woman with uterine fibroids and a lack of preceding abscess. Although rare, spontaneous bacterial peritonitis because of Actinomyces should be considered in differential in female patients without pre-existing liver disease presenting with spontaneous bacterial peritonitis.