[Pelvic actinomycosis: a case with secondary localization in the liver].

BACKGROUND

Actinomycosis is uncommonly observed in a pelvic localization. The presence of an intrauterine device is an important risk factor.

CASE REPORT: A 50-year-old woman presented a tumoral mass in the pelvis with secondary liver involvement. Pathology examination corrected the initial diagnosis of advanced stage pelvic neoplasia to actinomycosis. Rapid improvement was achieved with penicillin.

DISCUSSION: Differential diagnosis is difficult but essential in case of pelvic actinomycosis as misdiagnosis can have disastrous surgical consequences. Medical treatment is indicated. Actinomycosis should be entertained as a possible diagnosis in all cases associating a pelvic tumor and inflammation in women wearing an intrauterine device.