noun
unruptured cerebral aneurysm
Medical term for a brain aneurysm that has not yet ruptured. Used in clinical contexts.
未破裂脳動脈瘤は、破裂する前に治療することが重要です。
It is important to treat an unruptured cerebral aneurysm before it ruptures.
Compound of 未破裂 (unruptured) + 脳動脈瘤 (cerebral aneurysm). A modern medical term.