Kasliwal Manish K, Chandra P Sarat, Sharma Bhawani Shanker
Department of Neurosurgery, Neurosciences Centre, All India Institute of Medical Sciences, New Delhi, India 110029.
J Neurooncol. 2007 May;83(1):31-2. doi: 10.1007/s11060-007-9330-6. Epub 2007 Mar 30.
Posterior fossa ependymoma usually arise in the fourth ventricle. Though extension of this tumor into the cerebellopontine angle and subarachnoid space through the foramina of Luschka or Magendie is well described, a primary extraaxial cerebellopontine angle location of a posterior fossa ependymoma is distinctly uncommon. The authors report imaging in such an unusual case of a primary cerebellopontine angle ependymoma.
后颅窝室管膜瘤通常起源于第四脑室。虽然这种肿瘤通过Luschka孔或Magendie孔延伸至小脑脑桥角和蛛网膜下腔的情况已有详细描述，但后颅窝室管膜瘤原发性位于小脑脑桥角轴外的情况极为罕见。作者报告了一例原发性小脑脑桥角室管膜瘤的罕见病例的影像学表现。
