Basal Encephalocele Associated With Hypoplasia of the Internal Carotid Artery —Case Report—

Shinsaku HASEGAWA; Nakamasa HAYASHI; Michiya KUBO; Hideo HAMADA; Naoya KUWAYAMA; Hideo SHOJAKU; Takuya AKAI; Shunro ENDO

doi:10.2176/nmc.47.572

Case Reports

Basal Encephalocele Associated With Hypoplasia of the Internal Carotid Artery

—Case Report—

Shinsaku HASEGAWA, Nakamasa HAYASHI, Michiya KUBO, Hideo HAMADA, Naoya KUWAYAMA, Hideo SHOJAKU, Takuya AKAI, Shunro ENDO

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Keywords: basal encephalocele, hypoplasia of the internal carotid artery, transsphenoidal type

JOURNAL OPEN ACCESS

2007 Volume 47 Issue 12 Pages 572-575

DOI https://doi.org/10.2176/nmc.47.572

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Abstract

A 22-year-old woman presented with a basal encephalocele associated with hypoplasia of the internal carotid artery (ICA) manifesting as a 6-year history of decreased vision in the right eye. She underwent encephalo-arterio-synangiosis under a diagnosis of hypoplasia of the ICA at age 6 years. Magnetic resonance imaging showed the encephalocele medial to the right temporal lobe. Frontotemporal craniotomy was performed for resection of the encephalocele and repair of the defect of the skull base. The pathogeneses of these developmental anomalies were probably related to developmental failure of the embryonic primordium during the 4th and 10th weeks.

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