Sandhu A, Kendall B
Hospital for Sick Children, London, England.
Neuroradiology. 1987;29(5):444-52. doi: 10.1007/BF00341741.
The neuroradiological studies of 116 patients with histologically verified medulloblastomas, which had been examined with plain and contrast-enhanced computed tomography (CT), were reviewed. The typical CT appearances of a well-defined, hyperdense enhancing mass in the vermis, with surrounding oedema, occurred in 60% of this series. Atypical features include calcification (17%), cystic or necrotic regions (47%) or poorly defined margins and lack of enhancement (7%). Such features in a vermis mass presenting in the first decade, especially in a boy, should not be considered against the diagnosis of medulloblastoma, but may be misleading when the tumour predominantly involves a cerebellar hemisphere.
回顾了116例经组织学证实为髓母细胞瘤患者的神经放射学研究，这些患者均接受了平扫及增强计算机断层扫描（CT）检查。该系列病例中，60%表现为典型的CT征象，即蚓部有边界清晰、强化的高密度肿块，并伴有周围水肿。非典型特征包括钙化（17%）、囊性或坏死区域（47%），或边界不清及无强化（7%）。十岁前出现的蚓部肿块如有这些特征，尤其是在男孩中，不应排除髓母细胞瘤的诊断，但当肿瘤主要累及小脑半球时可能会产生误导。
