n.動脈瘤
Congenital aneurism is disease of blood-vessel of a kind of head, often bring about arachnoid haemorrhage finishing speech, be not the tumour inside true skull. 先天性動脈瘤是一種腦血管病，常導(dǎo)致蛛網(wǎng)膜下腔出血，并非真正的顱內(nèi)腫瘤。
