Pelvic actinomycosis masquerading as malignancy: report of two cases and review of the literature.

Pelvic actinomycosis is uncommon, presenting most frequently as an abdominal mass and simulating advanced malignancy in female patients with a past history of intrauterine contraceptive use. It responds favourably to prolonged antibiotic therapy with occasional need for abscess drainage and débridement or ureteric stenting. Incorrect diagnosis may result in overly invasive investigations and unnecessarily radical extirpative surgery.

Ureteral obstruction and reconstruction in pelvic actinomycosis.

We present a case of ureteral obstruction secondary to pelvic actinomycosis. Despite stenting, prolonged antibiotic therapy, and debridement, the patient required ureteral resection and reconstruction. This condition may simulate advanced malignancy, and diagnostic suspicion lessens the need for radical extirpative surgery.