Cerebral mycotic aneurysm complicating Stomatococcus mucilaginosus infective endocarditis.

Stomatococcus mucilaginosus is a gram-positive coccus present in the normal flora of the mouth and upper respiratory tract of humans. Although traditionally believed to be an organism of low virulence, S. mucilaginosus has recently been recognized as an emerging opportunistic pathogen, especially in patients with chronic immunosuppressive diseases.