Brain abscess and other protean manifestations of actinomycosis.

Reports on human actinomycosis documented by culture have been infrequent, particularly from India. The present paper reports 12 cases of actinomycosis confirmed by culture. These include two unusual cases of actinomycosis of the brain with no granules in the pus, two pulmonary cases, one renal, one abdominal, and six cervico-facial. The lethal outcome with organ involvement, and the chronicity in some cases, warrant early etiologic confirmation and prompt treatment.