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Updated: Jan 17, 2026

Comprehensive Endovascular and Open Surgical Management of Cerebral Arteriovenous Malformations
Published on: October 20, 2017
Arteriovenous malformation within the velum interpositum
Aleksandar Krbanjevi1, Tibor Valyi-Nagy2
1Department of Pathology, Microbiology and Immunology, Vanderbilt University, United States of America.
Abstract:
We present a case involving a 70-year-old Latina woman who experienced a sud-den onset of lightheadedness, diplopia, vertigo, and loss of balance. Imaging studies revealed a right thalamic intracerebral haemorrhage that obstructed the velum interpositum. Following unsuccessful embolisation, the thalamic region was surgically resected. Histopathological and immunohistochemical analyses of the resected brain tissue demonstrated abnormal blood vessels permeating through excessively cellular brain parenchyma, raising significant concern for a glial neoplasm. This case also illustrates a rare occurrence of an arteriovenous malformation within the velum interpositum, which, when acutely filled with blood, can expand the cavum and clinically present as a sudden onset of headache and vertigo.
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