Appendicovesical fistula caused by ileocecal actinomycosis.
D000196:Actinomycosis / Q000150:complications* / Q000175:diagnosis; D000328:Adult; D001065:Appendix; D006801:Humans; D007412:Intestinal Fistula / Q000175:diagnosis / Q000209:etiology; D008297:Male; D001747:Urinary Bladder Fistula / Q000175:diagnosis / Q000209:etiology*