Abdominal actinomycosis.

Abdominal actinomycosis seldom occurs before puberty. The symptomatology of abdominal actinomycosis is non-specific and the diagnosis is difficult to make. Previously, this condition was associated with a high mortality rate. The following patient had a flank abscess due to actinomycosis as a late complication of perforated appendix which was diagnosed by biopsy and culture. The patient responded to a prolonged course of chemotherapy with intravenous penicillin and metronidazole. This case illustrates the problems encountered in the diagnosis and management of childhood actinomycosis.