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01-12-2024 | Hematoma | Case Report

Pathological changes in the lenticulostriate artery indicate the mechanisms leading to intracranial hemorrhage in Moyamoya disease: a case report

Authors: Atsushi Hashio, Eika Hamano, Saya Ozaki, Kinta Hatyakeyama, Yoshihiko Ikeda, Akihiro Niwa, Naoto Yamada, Taichi Ikedo, Kiyofumi Yamada, Hirotoshi Imamura, Hisae Mori, Koji Iihara, Hiroharu Kataoka

Published in: Acta Neurochirurgica | Issue 1/2024

Abstract

This case report details the pathological findings of a vessel wall identified as the bleeding point for intracranial hemorrhage associated with Moyamoya disease. A 29-year-old woman experienced intracranial hemorrhage unrelated to hyperperfusion following superficial temporal artery-middle cerebral artery bypass surgery. A pseudoaneurysm on the lenticulostriate artery (LSA) was identified as the causative vessel and subsequently excised. Examination of the excised pseudoaneurysm revealed a fragment of the LSA, with a disrupted internal elastic lamina and media degeneration. These pathological findings in a perforating artery, akin to the circle of Willis, provide insights into the underlying mechanisms of hemorrhage in Moyamoya disease.

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Title: Pathological changes in the lenticulostriate artery indicate the mechanisms leading to intracranial hemorrhage in Moyamoya disease: a case report
Authors: Atsushi Hashio
Eika Hamano
Saya Ozaki
Kinta Hatyakeyama
Yoshihiko Ikeda
Akihiro Niwa
Naoto Yamada
Taichi Ikedo
Kiyofumi Yamada
Hirotoshi Imamura
Hisae Mori
Koji Iihara
Hiroharu Kataoka
Publication date: 01-12-2024
Publisher: Springer Vienna
Keywords: Hematoma
Aneurysm
Aneurysm
Pathology
Published in: Acta Neurochirurgica / Issue 1/2024
Print ISSN: 0001-6268
Electronic ISSN: 0942-0940
DOI: https://doi.org/10.1007/s00701-024-05992-5

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Pathological changes in the lenticulostriate artery indicate the mechanisms leading to intracranial hemorrhage in Moyamoya disease: a case report

Abstract

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Abstract

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