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为了阐述幕上室管膜瘤和室管膜下室管膜瘤的CT、MR特征,作者分析了11例幕上室管膜瘤和3例幕上室管膜下室管膜瘤的大小、形态、部位和CT、MR特征。11例室管膜瘤病人(男5例)年龄2～38岁,其中9例做了CT检香,7例做了MR检查。3例幕上室管膜下室管膜瘤病人(男2例)年龄分别为46、58和76岁,3例病人均做了CT、MR增强前后扫描,由两位神经放射学家以非盲方式对肿瘤的部位、大小、CT和MR信号特征和增强类型以及囊变和钙化的出现作影像研究。肿瘤位于额叶4例、顶叶3例、枕叶和中线各2例。肿瘤直径2～6cm(平均4cm),8例含有囊性成份,CT平扫4例发现钙化(4/
In order to elucidate CT and MR features of supratentorial ependymoma and subependymal ependymoma, the authors analyzed the size and morphology of 11 supratentorial ependymoma and 3 supratentorial subependymal ependymoma , Location and CT, MR features. 11 cases of ependymoma patients (5 males) aged 2 to 38 years, 9 of them CT CT incense, 7 patients underwent MR examination. Three cases of supratentorial subependyma (2 males) were 46, 58 and 76 years old, respectively. All three patients underwent CT and MR before and after the scan. Two neuroradiologists Blind modalities were used to perform image studies of tumor location, size, features and enhancement types of CT and MR signals, and appearance of cystic degeneration and calcification. The tumor was located in frontal lobe in 4 cases, parietal lobe in 3 cases, occipital lobe and midline in 2 cases. Tumor diameter 2 ~ 6cm (average 4cm), 8 cases of cystic components, CT scan found in 4 cases of calcification (4 /