Ovarian and vesical actinomycosis: a case report and literature review.

We present a patient with a tubo-ovarian abscess pathologically confirmed to be actinomycosis in a 44-year-old woman with an intrauterine device (IUD). An ultrasound showed that the IUD was imposed on an apparently degenerated myoma. A pelvic MRI was performed to differentiate the uterine findings from a sarcoma. The MRI showed a heterogeneous pelvic mass and a bladder mass suggesting chronic inflammation caused by an organism such as actinomycosis. An exploratory laparotomy was performed, which revealed a right tubo-ovarian mass with abscess formation as well as a bladder mass. A subtotal hysterectomy, right salpingoophorectomy, partial cystectomy, and appendectomy were performed in addition to drainage of the abscess. Histopathological examination revealed a tubo-ovarian abscess and a bladder mass with colonies of actinomycoses.