視神経交叉部Actinomycosisの1例

Actinomycotic Granuloma of the Optic Chiasma: A case report

I．はじめに

　Actinomycosisは化学療法の発達につれ減少の一途をたどっていると言われ，更に中枢神経系のactinomy—cosisは非常に稀な疾患である．今度感染症の徴候に乏しく，術前の諸検査で脳腫瘍と思われたが，術後病理学的に初めて視交叉部と視神経に限局したactinomycosisと判明し，抗生剤の長期投与にて治癒できた1例を経験した．その診断，治療の問題点について考察した．

A case of actinomycotic granuloma of the optic chias-ma and the optic nerve is reported.

A 53-year-old man was admitted to our hospital with headache and vomiting on September 25, 1989. Generalphysical and neurological examination on admission re-vealed no remarkable findings. CT-scan demonstrated almost normal pictures. On the 17th hospital day, his temperature was 38℃ and white blood cell (WBC) count was 12000 cumm. And he presented right abducens pal-sy. MRI demonstrated no abnormal findings then.