Pelvic actinomycosis: A hidden threat mimicking pelvic tumors.

Actinomycosis is a suppurative granulomatous infection caused by the Gram-positive bacillus Actinomyces israelii. It rarely affects the pelvis, but its incidence appears to be increasing, possibly due to the frequent use of intrauterine devices (IUDs). We report the case of a patient with an IUD in place for over 10 years who presented with pelvic pain, general health deterioration, and imaging findings suggesting a neoplastic origin.