Abstract
A patient, 60-year-old female, came to our hospital with complaint of palpable tumor in the left lower quadrant of her abdominal wall. Abdominal echo and CT studies revealed a tumor of 4.0 cm in diameter underneath the left rectus abdominis muscle. Extension of inflammation or infiltration of the mass to the omentum and surrounding tissue was suspected. Biopsy study confirmed the diagnosis of actinomycosis. Excision of the abdominal wall mass along with the omentum adhered underneath was performed. There was no involvement of the bowel nor extention of intraperitoneal inflammation. The culture of the specimen revealed Klebsiella oxytoca only. Histopathological study revealed granuloma and cluster of fungus and the diagnosis of actinomycosis was made. Report of actinomycosis of the abdominal wall is relatively rare in our country and only 16 cases including ours were reported up to now. It is possible to make preoperative diagnosis by biopsy, and so the possibility of actinomycosis should be considered in case of inflammatory abdominal wall mass. Surgical resection is the treatment of choice and selection of antibiotics considering the possible presence of mixed infection is important.
