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Sanatan Rath, MS(Gen and Neuro); K.V. Mathai, MS(Gen and Neuro); Jacob Chandy, MSc, FRCS(C)

Arch Neurol. 1968;19(1):121-122.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

IN the early fetal life, the internal carotid artery anastomoses with the basilar artery through three vessels (the primitive trigeminal, the otic, and the hypoglossal arteries) all of which usually disappear by the 14-mm stage of the embryo. Up to this stage, the trigeminal artery is a prominent vessel carrying the major supply of blood to the mid-brain and hind-brain. This vessel gradually disappears with the appearance of the stem of the posterior communicating artery at the 14-mm stage. Persistence of the primitive trigeminal artery forming a carotid-basilar anastomosis is rare.

Quain¹ first reported the existence of an abnormal communication between the internal carotid and basilar arteries and Padget² identified this as persistence of the primitive trigeminal artery. But it was Sutton³ who first described this carotid-basilar anomaly on angiographic evidence. Prior to Sutton's report, 15 cases were recorded in literature on the basis of autopsy . . . [Full Text PDF of this Article]

Author Affiliations
Vellore, South India

From the Department of Neurological Sciences, Christian Medical College Hospital, Vellore, South India (Dr. Mathai).

Footnotes
Submitted for publication May 16, 1967; accepted Jan 30, 1968.

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