Primary osteomyelitis due to an anaerobic microorganism.
Primary osteomyelitis in a teen-aged boy that mimicked Ewing's tumor radiologically showed small Gram-negative rods on the original smear. The organism isolated was an obligately anaerobic bacterium, finally identified as Clostridium sphenoides. This finding underlines the need for microbiologic analysis of orthopedic lesions.
D000293:Adolescent; D003013:Clostridium / Q000472:pathogenicity*; D003015:Clostridium Infections / Q000382:microbiology*; D006801:Humans; D008297:Male; D010019:Osteomyelitis / Q000209:etiology* / Q000382:microbiology