Unilateral tubo-ovarin actinomycosis in the presence of an intrauterine device.

A case of unilateral tubo-ovarian abscess due to Actinomyces in the presence of an intrauterine device is presented. The gross and microscopic features are described. As the diagnosis of this potentially serious infection is usually made by the histologic demonstration of sparsely distributed sulfur granules, the pathologist should approach every case of IUD-associated pelvic inflammation with a high index of suspicion.