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Asymtomatic rete mirabile in carotid and vertebral circulation systems
  1. Ji Man Hong,
  2. Jae Hyuk Lee,
  3. Seok Woo Yong
  1. Department of Neurology, Ajou University School of Medicine, Suwon, South Korea
  1. Correspondence to Dr Ji Man Hong, Department of Neurology, School of Medicine, Ajou University, 5 San, Woncheon-dong, Yongtong-gu, Suwon-si, Kyunggi-do, 442-749, South Korea; dacda{at}hanmail.net

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Carotid rete mirabile is a normal collateral network between the external carotid artery (ECA) and internal carotid artery (ICA) in cats, goats, sheep, pigs and so on.1 2 However, in humans, carotid rete mirabile with segmental agenesis of ICA is a rare condition, and in particular the concurrence of rete miramile in the carotid and vertebrobasilar circulation systems is extremely rare.2 3

A 45-year-old female was admitted to Department of Neurology presenting a dull and pressing-type headache. CT angiography of the head revealed several arterial connections from the ECA to the carotid …

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