Dorsal midbrain encephalitis caused by Propionibacterium acnes. Report of two cases.

Camarata, P J; McGeachie, R E; Haines, S J · J Neurosurg · 1990

case_series · Level IV

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Abstract

A syndrome of dorsal midbrain dysfunction in association with a central nervous system anaerobic diphtheroid infection is described. Two cases of infection with Propionibacterium acnes manifested as shunt malfunctions with a clinical dorsal midbrain syndrome. Magnetic resonance images showed increased signal in the midbrain tectum which has decreased slowly over time. The evidence suggesting that this syndrome represents bacterial midbrain encephalitis is discussed.

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