A case of cheek actinomycosis caused byActinomyces meyeri

Actinomycosis is a specific type of inflammation that has become rare since the advent of antibiotics. We report a case of cheek actinomycosis caused byActinomyces meyeri (A. meyeri), which we encountered recently.A 52-year-old man was carried by ambulance to our department because of left cheek swelling, pain, and poor general condition. After a computed tomographic scan, surgical drainage was performed. OnlyA. meyeriwas isolated from the pus. After isolation, high-dose penicillin G therapy (8 million units/day for 17 days intravenously and 6.4 million units/day for the following 4 weeks by orally) was given. Cure was achieved without any granulomatous lesions.