Fenestration of the Intracranial Internal Carotid Artery —Case Report—

Shouji TAKANO; Motoyoshi SAITOH; Yoshio MIYASAKA; Kenzoh YADA; Hiroshi TAKAGI

doi:10.2176/nmc.31.740

Fenestration of the Intracranial Internal Carotid Artery

—Case Report—

Shouji TAKANO, Motoyoshi SAITOH, Yoshio MIYASAKA, Kenzoh YADA, Hiroshi TAKAGI

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Keywords: internal carotid artery, fenestration, vascular anomaly

JOURNAL FREE ACCESS

1991 Volume 31 Issue 11 Pages 740-742

DOI https://doi.org/10.2176/nmc.31.740

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Abstract

A rare case of fenestration of the intracranial internal carotid artery (ICA) was identified by angiography in a 51-year-old female with suspected subarachnoid hemorrhage. Only two similar cases have been reported previously. Fenestration tends to develop on the right side and near the bifurcation of the ophthalmic artery. Congenital factors at the 4 mm embryonic stage may be involved in the fenestration of the intracranial ICA.

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