Actinomycosis of the urinary bladder.

The case of a 49 year-old female patient, with frequency of urination for 2 years, having a mass at the anterior bladder wall and at the anterior abdominal wall is reported. Cystoscopy found an impression of the anterior bladder wall and hyperremic edematous bladder mucosa. Pre-operative computerized tomography suspected bladder tumor. Laparotomy revealed an inflammatory firm mass at the anterior bladder wall and another mass at the anterior abdominal wall. Partial cystectomy and excision of the mass at the anterior abdominal wall were performed. After the pathological examination confirmed actinomycosis, the patient was treated post operatively with penicillin. She recovered well.