Torrealba G, Del Villar S, Arriagada P
Department of Neurology, Catholic University of Chile, Santiago.
J Neurol Neurosurg Psychiatry. 1987 Nov;50(11):1539-41. doi: 10.1136/jnnp.50.11.1539.
Four patients with mass lesions of the posterior fossa experienced protracted vomiting as their only symptom for extended periods of time. The responsible lesions were a cerebellar tumour in two patients, a ventricular cysticercus in one patient, and a giant vertebral artery aneurysm in another. All four cases had compression or displacement of the floor of the fourth ventricle, where the "vomiting centre" has been located. The value of vomiting as a sign of a posterior fossa lesion is emphasised.
四名后颅窝有占位性病变的患者长时间仅以持续性呕吐为唯一症状。病因分别为两名患者是小脑肿瘤,一名患者是脑室囊尾蚴病,另一名患者是巨大椎动脉动脉瘤。所有四例均存在第四脑室底(“呕吐中枢”所在部位)受压或移位。文中强调了呕吐作为后颅窝病变体征的价值。