Weiner H L, Zagzag D, Babu R, Weinreb H J, Ransohoff J
Department of Neurosurgery, New York University Medical Center, N.Y. 10016.
J Neurooncol. 1993 Jan;15(1):37-43. doi: 10.1007/BF01050261.
Two cases of cystic brainstem schwannomas protruding into the fourth ventricle are described. Both patients presented with hemifacial spasm. While there is only one previous case report of an intraventricular brainstem schwannoma, there has been no prior description in the literature of hemifacial spasm associated with such a tumor. The clinical, radiographic, surgical, and histopathological features of these tumors are elaborated. The relationship of hemifacial spasm to the various putative theories of origin proposed for intraparenchymal schwannomas is discussed.
本文描述了两例突入第四脑室的囊性脑干神经鞘瘤病例。两名患者均表现为半面痉挛。虽然此前仅有一例关于脑室内脑干神经鞘瘤的病例报告，但文献中尚无此类肿瘤伴发半面痉挛的描述。文中详细阐述了这些肿瘤的临床、影像学、手术及组织病理学特征。并讨论了半面痉挛与实质内神经鞘瘤各种假定起源理论之间的关系。
