Intra-abdominal actinomycosis presenting as complex abdominopelvic mass

A rare case of intra-abdominal actinomycosis in a 70-year-old lady presenting as abdominopelvic mass mimicking malignancy is presented. Intra-abdominal actinomycosis may present a serious diagnostic problem both pre- and peroperatively and can lead to extensive surgical intervention due to the anticipation of malignancy. The diagnosis is difficult specially in the absence of characteristic discharging sinus. The diagnosis of this disease, potentially curable by antibiotic is more often made postoperatively by histopathology and microbiological methods.