저자들은 재발성 췌장암으로 인해 고식적 항암화학치료를 받고 있던 46세 남자 환자에서 복부 전산화 단층 촬영상 암종의 재발로 의심되는 종괴 형태로 발생한 복부의 방선균증의 증례를 경험하였기에 문헌고찰과 함께 보고하는 바이다.
A 46-year-old male patient with recurrent pancreatic cancer was admitted with a newly developed abdominal mass. The patient had a history of diabetes and underwent total pancreatectomy with partial gastrectomy followed by adjuvant concurrent chemoradiation therapy and palliative chemotherapy. Abdominal CT scan during palliative chemotherapy showed an abdominal wall mass. We performed excisional biopsy for diagnosis. Histological examination revealed actinomycosis of the abdominal wall. The patient was treated with penicillin G. This case showed that actinomycosis can occur in a patient receiving chemotherapy and may mimic cancer recurrence. Therefore, when evaluating a newly developed abdominal mass in patients who are receiving chemotherapy or radiotherapy, the probability of actinomycotic infection must also be considered, especially in patients with a history of surgery and diabetes mellitus. (Korean J Med 2013;85:401-405)