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I.はじめに
neuroectodermal tumorの頭蓋外転移は稀で,0.4%8)ともいわれている.転移部は主に肺,リンパ節,骨,肝で,術後の術創部よりの直接浸潤を除けば,腫瘍部より硬膜をこえて隣接する組織への破壊的浸潤を呈することすら,比較的稀である.
われわれの施設にて,側頭葉悪性神経膠腫の眼窩,上顎への浸潤を2例経験した.1例は,腫瘍全摘出後15カ月を経て,眼窩,上顎への進展を認め,再手術を行ったが,腫瘍摘出腔(原発巣)には全く再発は認められず,隣接した眼窩,上顎部のみでの再発であった.他の1例は,同じ悪性神経膠腫で,原発巣の再発により眼窩内への直接浸潤を示した.2症例の転移経路を対比検討し,若干の文献的考察を加えて報告する.
Two cases of glioblastoma involving orbit and ma-xillary sinus are presented.
Case 1: A 49-year-old male was admitted on May 20, 1982, with complaints of headache and impairment of memory. On July 27, 1982, operation was carried out. The tumor in the left temporal lobe was totally removed, and he subsequently received chemotherapy and irradiation. The postoperative course was un-eventful. On Oct. 26, 1983, he was readmitted with complaints of disturbance of gait and memory. A CT scan revealed no local recurrence of the tumor but a diffusely enhanced mass in orbit and maxillary sinus.
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