Kojima Y, Tanaka N, Kuwana N
Department of Neurosurgery, Yokohama Minami Kyosai Hospital.
Neurol Med Chir (Tokyo). 1990 Nov;30(12):972-6. doi: 10.2176/nmc.30.972.
Massive hemorrhage within an intracranial neurinoma occurs rarely. The authors describe a 62-year-old female with intratumoral bleeding which led to the discovery of an acoustic neurinoma. She developed a gait disturbance after a minor head injury. A computed tomographic scan obtained 2 months later demonstrated multiple high-density areas in the anterior portion of the left cerebellopontine angle. Preoperative diagnosis was acoustic neurinoma. The tumor had multiple cysts which contained a mixture of xanthochromic fluid and old, brownish hematomas, and was successfully removed. The intratumoral hemorrhage is thought to have resulted from traumatic rupture of the dilated vessels, although the trauma was slight. This is the first reported case of an acoustic neurinoma discovered through treatment for intratumoral hemorrhage occurring after a minor head injury.
颅内神经瘤内发生大量出血的情况很少见。作者描述了一名62岁女性，其肿瘤内出血导致了听神经瘤的发现。她在轻微头部受伤后出现步态障碍。2个月后进行的计算机断层扫描显示左小脑脑桥角前部有多个高密度区。术前诊断为听神经瘤。肿瘤有多个囊肿，其中含有黄色清亮液体和陈旧的褐色血肿混合物，并成功切除。尽管创伤轻微，但肿瘤内出血被认为是扩张血管的外伤性破裂所致。这是首例因轻微头部受伤后发生肿瘤内出血而发现听神经瘤的报道病例。
