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Ⅰ.はじめに
開頭手術の術後合併症として感染症は常に念頭に置かねばならないが,近年の抗菌療法の進歩および手術室の清浄度の向上に伴って極めて少なくなった.今回われわれは髄膜腫の術後に合併した硬膜下膿瘍の1例を経験した.膿瘍内容から皮膚の常在菌であるPropionibacterium acnes(P.Ac-nes)を検出した.稀な症例で過去の報告にない早い経過を辿り,MRI所見が診断上有用であったので報告する.
Propionibacterium acnes are gram-positive pleomorphic rods that grow under an anaerobic condition. They are the most frequent inhabitants of sebaceous glands of skin, hair follicles, mouth, upper respiratory tract, and as a frequent contaminant in laboratory cultures. Propionibacterium acnes is an underestimated but significant cause of postneuro-surgical infection, especially in the presence of foreign bodies such as shunt systems. We present a rare case with a postoperative subdural empyema in which the only pathogen isolated was Propionibacterium acnes. In our case, the clinical course was atypically rapid.
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