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ABS TRACT Va ri a ti ons in the ori gin and the co ur se of the ver teb ral ar te ri es are un com mon and regar ded as a con ge ni tal ano maly oc cur ring in the early sta ges of emb ryo nic de ve lop ment. The se va ri a ti ons of the ver teb ral ar te ri es oc cur mostly on one si de and usu ally on the left. The most fre qu ent va ri ant is a left ver teb ral ar tery ari sing di rectly from the aor tic arch bet we en the left com mon ca ro tid and the left subc la vi an ar teries. Ho we ver, an ano ma lo us ori gin of the the right ver teb ral artery is much ra rer and de tec ted as an in ci den tal fin ding at sur gery or au topsy. Ano ma lo us ori gins of both ver teb ral ar te ri es are ex ce e dingly ra re. The re are only a few ca se re ports in the ra di o logy li te ra tu re that dis cuss the con ven ti o nal an gi og rap hic fin dings of this ra re ano maly. Know led ge of the va ri a ti ons in the aor tic arch branc hing pat tern is im por tant pri or to en do vas cu lar in ter ven ti o nal pro ce du res or vas cu lar sur gery in the neck re gi on. In this re port, we pre sent mul ti de tec tor compu ted to mog rap hic an gi og raphy fin dings of an ex tre mely ra re com bi na ti on of ano ma li es of the aor tic arch con sis ting of an aber rant right subc la vi an ar tery; a com mon ori gin of both com mon ca ro tid ar te ri es with a right ver teb ral ar tery ori gi na ting from the right com mon ca ro tid ar tery and a left ver teb ral ar tery ori gi na ting from the aor tic arch bet we en the com mon ca ro tid trunk and left subc la vi an ar tery.

Anomalous Origin of Bilateral Vertebral Arteries Associated with an Aberrant Right Subclavian Artery and a Common Carotid Trunk: Case Report