e82 IMAGE OF THE MONTH CLINICAL GASTROENTEROLOGY AND HEPATOLOGY Vol. 10, No. 10intravenous penicillin for 1 month after surgery and was dis- wall thickening and regional mass lesions adjacent to the in-charged with oral penicillin. volved bowel with extensive inﬁltration.2 Radiographic ﬁndings Actinomycosis is an unusual disease that mainly involves the and clinical symptoms are nonspeciﬁc, and the diagnosis usu-cervicofacial area (50%) and the abdomen (20%) and thorax ally is made postoperatively.2(15%–20%).1 In abdominal actinomycosis, the appendix andileocecal regions are affected most commonly. Actinomyces are Referencesnormal inhabitants of the oral cavity and gastrointestinal tract, 1. Wong VK, Turmezei TD, Weston VC. Actinomycosis. BMJ 2011;with opportunistic infection occurring when the mucosal bar- 343:d6099.rier is broken.1 Abdominal actinomycosis has been associated 2. Lee IJ, Ha HK, Park CM, et al. Abdomino-pelvic actinomycosis in-with abdominal surgery, bowel perforation, or trauma. The volving the gastrointestinal tract: CT features. Radiology 2001;220:typical manifestations of computed tomography scan are bowel 76 – 80.