―研究―脳腫瘍血管透過性の超微形態—第6報：Metastatic brain tumorにおける浮腫

Ultrastructure of Capillary Permeability in Human Brain Tumor: Part 6 Metastatic brain tumor with brain edema

I．緒言

　転移性脳腫瘍の微小血管の形態学的変化を電顕的に検索し，すでに報告した^7）多形性膠芽腫のそれと対比し，脳浮腫発生の一因としての血管透過性について検討を加えた．

Metastatic brain tumors very often cause severe brain edema. We examined ultrastructural findings of capillaries of these tumors and discussed the causes of cerebral edema as compared with those of glioblastomawhich were previously reported. Four specimens were examined : two adenocarcinomas from the lung, one squamous cell carcinoma from the lung and one adenocarcinoma from the breast. These replicas and ultrathin sections were examined by transmission electron microscope.