Actinomycosis mimicking pelvic malignancy.

Pelvic actinomyces, usually a complication of an intrauterine device (IUD), is uncommon and may present a diagnostic dilemma because of an atypical clinical presentation. We present a patient with a cervical tumor, extensive parametrial induration with involvement of the posterior bladder wall, and regional lymph nodes which mimicked advanced cervical cancer and presented a significant diagnostic problem.