[Actinomycosis of the colon as a rare differential diagnosis of colonic carcinoma].Chirurg. 2000 Jan; 71(1):93-7.C
Abdominal actinomycosis is an uncommon disease. Nevertheless it should be considered in case of unclear tumor-like abdominal masses.
We report a case of a 49-year-old patient with an intrauterine device. The patient was submitted with a solid and painful tumor in the upper abdomen. After sonography, computerized tomography, gastroduodenoscopy and colonoscopy the preoperative presumptive diagnosis was a carcinoma of the transvers colon invading the abdominal wall. Pathological examination after a right hemicolectomy surprisingly revealed an actinomycosis.
Based on this case diagnostic tools and therapeutic options of actinomycosis of the colon are discussed.
This case illustrates the importance to consider the possibility of actinomycosis when finding an unclear abdominal mass. After a surgical excision an abdominal actinomycosis requires antibiotic therapy.