Basal encephalocele associated with hypoplasia of the internal carotid artery
Related Experiment Video
Updated: Jul 8, 2026

Surgical Treatment of an Endolymphatic Sac Tumor
Published on: May 26, 2023
Shinsaku Hasegawa1, Nakamasa Hayashi, Michiya Kubo
1Department of Neurosurgery, University of Toyama, Faculty of Medicine, Sugitani, Toyama, Japan.
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.
Related Concept Videos
Cerebral Edema ll: Pathophysiology
The Arch of Aorta
Encircling the heart, the coronary arteries form a ring-like structure before...
Increased Intracranial Pressure ll: Pathophysiology
Cerebral Edema l: Introduction
Arteries of the Head and Neck
The internal carotid arteries supply blood to the anterior portion of the cerebrum. They enter the...
Anatomy of the Brain: Ventricles
