Fig. 2From: Ischaemic stroke and Clostridium septicum sepsis and meningitis in a patient with occult colon carcinoma - a case report and review of the literatureGram stain morphology of Clostridium septicum from CSF (a) and blood culture (b) in 1000× magnification. Interestingly, spore formation (arrow) was only observed in Gram stains from blood culturesBack to article page