Introduction. Persistence of fetal cerebral carotid basilar anastomoses is
rare. When it occurs, it is often associated with other vascular
malformations, and other pathological conditions. Trigeminal primitive artery
persistence is the most often among them. Coincidence of primitive trigeminal
artery with cerebellar arteriovenous malformation is extremely rare. Case
report. We reported a case of a 31-year-old woman with subarachnoid
hemorrhage and cerebellar hematoma admitted in serious condition. Angiography
demonstrated cerebellar arteriovenous malformation, primitive trigeminal
artery and other malformation of Willis circle. After a complete surgical
removal of arteriovenous malformation the patient was discharged without
neurological or any other deficit. Conclusion. We reported an extremely rare
condition, which had been reported very few times in the literature. The
importance of primitive artery persistence is in changed anatomical and
physiological condition of cerebral circulation, that is especially important
in surgical procedures.