髓母细胞瘤CT诊断(附93例报告)

目的探讨CT对髓母细胞瘤的诊断价值.方法对93例髓母细胞瘤的CT表现与手术病理对照进行回顾性分析,93例患者全部行CT检查,其中65例经MRI检查,全部病例经手术及病理证实.结果髓母细胞瘤好发于10岁以下儿童（88%）,且肿瘤位于小脑蚓部,成人则常发生在一侧小脑半球.肿瘤血运较丰富,可有囊变、坏死（25%）,偶有钙化（7%）.其影像学特点是肿瘤呈高或略高密度肿块影,有中等度较均一增强,有8%增强不显著.结论髓母细胞瘤恶性度高、预后差,其CT表现有一定的特异性.

CT in the diagnosis of medulloblastoma (93 case report)

Objective The imaging findings of CT including pathology in 93 patients with medulloblastoma were retrospectively studied and analized.Methods All the patients confirmed suigically and pathologically received CT examination and 65 cases of them were examined by MRI scanning.Results The results showed that medulloblastoma was commonly seen in the children under the age of 10(88%),and it frenquently situated at the inferior worm of cerebllum,while in adults it involved the cerebellum hemisphere.The medulloblastoma was rich in blood supply.Cystic change or necrosis(25%) and occasionally calcification(7%) were observed in these patients.The features of imaging of CT on modulloblastoma showed high or slightly high attenuation with homogenious enhancement.There was only 8% cases without obvious enhancement.Conclusion Medulloblastoma has very high malignancy and poor prognosis.Imaging examination is specifically helpful in diagnosis of medulloblastoma.