Girardot C, Boukobza M, Lamoureux J P, Sichez J P, Capelle L, Zouaoui A, Bencherif B, Metzger J
Service de Neuroradiologie, Hôpital de La Pitié, Paris.
J Neuroradiol. 1990;17(4):303-18.
Four cases of benign choroid plexus papillomas of the posterior fossa in adults are reported: two papillomas developed in the fourth ventricle, one in the cerebellopontine angle, and one extended from the fourth ventricle to the cerebellopontine angle. CT, MRI and surgical findings are described. The MRI characteristics on T1 and T2-weighted sequences are compared with those already published. In three cases the tumour signal observed after gadolinium enhancement was intense and homogeneous. The paramagnetic contrast agent provided direct visualization and better discrimination of papilloma location and extent.
本文报告了4例成人后颅窝良性脉络丛乳头状瘤：2例乳头状瘤发生于第四脑室，1例位于小脑桥脑角，1例从第四脑室延伸至小脑桥脑角。描述了CT、MRI及手术所见。将T1和T2加权序列的MRI特征与已发表的结果进行了比较。3例钆增强后肿瘤信号强且均匀。顺磁性造影剂可直接显示并更好地分辨乳头状瘤的位置和范围。
