An uncommon association of chronic odontogenic osteomyelitis and an abscess in the right mandibular region with facial actinomycosis of 6 months duration after several short‐term therapy failures is described.

Case presentation:

The patient was a 55‐year‐old man with chronic inflammation of the right parotid area of the face. , and were isolated from specimens of the subtemporal abscess. Therapy started as clarithromycin and was followed by amoxicillin/clavulanate because of the resistance patterns of co‐infecting .


In this case of facial actinomycosis, a successful therapeutic outcome involved a prolonged therapy as well as the detection of drug‐resistant co‐existing anaerobic bacteria.


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