Choriocarcinoma頭蓋内転移によるNeoplastic aneurysmの1例

A Case Report on Neoplastic Aneurysm due to Metastatic Choriocarcinoma

I．はじめに

　脳転移choriocarcinomaは頭蓋内占拠性病変となるだけでなく，脳血管障害型の発症様式をとり，頭蓋内血腫に準じた外科的治療を要することもある．今回われわれは，choriocarcinomaが内側から動脈壁に浸潤して動脈瘤を形成し，その破裂出血によって発症した特異な頭蓋内転移例を経験したので，文献的考察を含めて報告する．

A twenty-year-old female, who had multi-agent chemotherapy for eighteen months after surgical re-section of a choriocarcinoma originating from the left adnexa, was hospitalized because of a cerebrovascu-lar accident. Her complaints were unconsciousness, generalized convulsion and left hemiparesis. Although both plain and contrast enhanced CT scans demon-strated only acute subdural hematoma in the right frontoparietal region associated with midline shift, no tumor shadow was recognized over the cortex or intraparenchymally.