Daibo Ke1, Xueyun Deng1,2, Xiang Li1, Jiuhong Li1, Xuhui Hui1. 1. Department of Neurosurgery, West China Hospital of Sichuan University, Chengdu, Sichuan. 2. Department of Neurosurgery, Nanchong Central Hospital, The Second Clinical Medical College of North Sichuan Medical College, Nanchong, China.
Abstract
RATIONALE: Extra-axial cavernous malformations (ECMs) arising from cranial nerves (CNs) are rare. Complete "en bloc" lesion resection and hemosiderin-stained tissue preservation remain the standard treatment, while a different strategy may be needed when the lesion is highly calcified . We report the 3rd calcified ECM-CN and review the clinical features and surgical strategy for this rare condition considering previous literature. PATIENT CONCERNS: We present a 52-year-old woman with a calcified lesion located in the right lower 1/3 of the cerebellopontine angle. DIAGNOSIS: The diagnosis was calcified ECM-CNs according to the pathological and radiological features. INTERVENTIONS: A posterior midline craniotomy was performed, and piecemeal resection of the lesion was carried out. Subtotal resection of the lesion was achieved with a small piece left in situ. OUTCOMES: No symptom or lesion-related recurrence was found during 28 months of follow-up. LESSONS: Calcified ECM-CNs are unique cavernous malformations arising from CNs. Piecemeal resection and subtotal or near-total excision are 2 major aspects that differ from the surgical strategy for general ECM-CNs.
RATIONALE: Extra-axial cavernous malformations (ECMs) arising from cranial nerves (CNs) are rare. Complete "en bloc" lesion resection and hemosiderin-stained tissue preservation remain the standard treatment, while a different strategy may be needed when the lesion is highly calcified . We report the 3rd calcified ECM-CN and review the clinical features and surgical strategy for this rare condition considering previous literature. PATIENT CONCERNS: We present a 52-year-old woman with a calcified lesion located in the right lower 1/3 of the cerebellopontine angle. DIAGNOSIS: The diagnosis was calcified ECM-CNs according to the pathological and radiological features. INTERVENTIONS: A posterior midline craniotomy was performed, and piecemeal resection of the lesion was carried out. Subtotal resection of the lesion was achieved with a small piece left in situ. OUTCOMES: No symptom or lesion-related recurrence was found during 28 months of follow-up. LESSONS: Calcified ECM-CNs are unique cavernous malformations arising from CNs. Piecemeal resection and subtotal or near-total excision are 2 major aspects that differ from the surgical strategy for general ECM-CNs.
Authors: Antonio Tarabay; Alda Rocca; Philippe Maeder; Alexandre Simonin; Mahmoud Messerer; Roy Thomas Daniel Journal: World Neurosurg Date: 2019-05-22 Impact factor: 2.104
Authors: Michiel Algoet; Pieter Jan Van Dyck-Lippens; Jan Casselman; Sabriya Sirimsi; Christophe D M Fletcher; Ivo Van Den Berghe; Ludo Vanopdenbosch; Stijn De Muynck; Nikolaas Vantomme Journal: World Neurosurg Date: 2019-03-12 Impact factor: 2.104