Spontaneous Subarachnoid Hemorrhage Caused by Ruptured Aneurysm of Basilar Trunk Perforator

Abstract Background: The morbidity of BAPA is very low. Up to now, the pathogenesis and treatment of BAPA are not uniform. Conventional endovascular embolization and craniotomy seem not to be a good choice. We report a case of spontaneous subarachnoid hemorrhage caused by rupture of perforator aneurysm of basal trunk and successfully discharged after conservative treatment, suggesting that conservative treatment may be superior to surgical intervention.Case presentation: A 65-year-old male patient with sudden headache and dizziness for five days was admitted to our hospital for emergency treatment. Spontaneous subarachnoid hemorrhage was diagnosed by DSA. We finally found that hemorrhage Caused by ruptured aneurysm of basilar Trunk perforator.After conservative treatment for two months,DSA showed that the aneurysm disappeared completely.Conclusions: Aneurysm located at perforator artery of basilar trunk was rare and difficult to treat.Conservative treatment for certain cases with periodic angiography follow-up was recommended in order to prevent from potential iatrogenic effects.