Rickert C H, Kedziora O, Gullotta F
Institute of Neuropathology, Westf5aalische Wilhelms-Universität Münster, Münster, Germany.
Acta Neurochir (Wien). 1999;141(7):781-2. doi: 10.1007/s007010050376.
Myxopapillary ependymomas are benign tumours which occasionally metastasize along cerebrospinal fluid pathways. Extraneural metastases of spinal ependymomas, however, are very rare, even more so when situated in the pleura. We report the case of a 67 year old woman presenting with shortness of breath after recurrent myxopapillary ependymomas of the cauda equina. Chest X-ray showed multiple pleural lesions diagnosed as metastases of a myxopapillary ependymoma. The MIB-1 proliferation index was 3.1% for the initial spinal tumour, 14.2% for the first and 11.2% for the second recurrence while 12.0% for the pleural metastasis.
黏液乳头型室管膜瘤是良性肿瘤,偶尔会沿脑脊液途径转移。然而,脊髓室管膜瘤的神经外转移非常罕见,位于胸膜时更是如此。我们报告一例67岁女性病例,该患者在马尾神经反复发生黏液乳头型室管膜瘤后出现呼吸急促。胸部X线显示多个胸膜病变,诊断为黏液乳头型室管膜瘤转移。初始脊髓肿瘤的MIB-1增殖指数为3.1%,第一次复发时为14.2%,第二次复发时为11.2%,而胸膜转移时为12.0%。