a1 Department of Neuro-Otology/Skull Base Surgery, St Vincent' Hospital, Sydney, Australia
a2 Department of Anatomical Pathology, St Vincent' Hospital, Sydney, Australia
a3 Department of Otolaryngology, John Hopkins Hospital, Newcastle, Australia
Actinomycosis of the temporal bone is uncommon. There have only been 24 cases previously reported in the English literature. The responsible organism is Actinomyces israelii, an anaerobic filamentous Gram positive bacterium. While the cervico-facial region is the most common site of the disease, involvement of the temporal bone is rare. The diagnosis can sometimes be made clinically by identification of sulphur granules in a glue-like substrate but in all cases involving the temporal bone, the diagnosis has been made at histopathology. Effective therapy consists of surgery followed by the long-term administration of penicillin.
(Accepted September 12 1997)
c1 Address for correspondence: Mr P. Fagan, 352 Victoria Street, Darlinghurst, NSW 2010 Australia