[Solid pseudotumoral tubo-ovarian actinomycosis. A case report in Morocco]

Tubo-ovarian actinomycosis is a rare location for infection by actinomyces. Only around 50 cases have been described in the world literature since 1963. Diagnosis can be difficult due to the highly misleading solid pseudotumoral appearance of this infection. The purpose of this report is to describe the case of a 40-year-old patient with an intrauterine device who presented abdomino-pelvic pain associated with guarding in the right iliac fossa. Pelvic ultrasound revealed an ovarian mass. Histological examination of the surgical specimen after annexectomy demonstrated tubo-ovarian actinomycosis. Based on this case involving a rare clinical form of the actinomycosis, we review the various clinical aspects of this infection and underline the importance of histology in achieving diagnosis. We also provide a general review of the literature.