Zimmerman R A, Bilaniuk L T, Bruno L, Rosenstock J
AJR Am J Roentgenol. 1978 May;130(5):929-33. doi: 10.2214/ajr.130.5.929.
Analysis of CT scans of 25 patients with cerebellar astrocytoma indicates that a typical spectrum of findings exists for the cerebellar astrocytomas. CT is highly accurate in delineation and characterization of new and recurrent tumors. Recurrences may be demonstrated long before symptoms occur. The density of the fluid in the tumor cyst is twice that of cerebrospinal fluid. Thus differentiation from nonneoplastic cystic lesions and postoperative defects is possible. CT findings of solid or cystic tumor frequently correlate with histologic categorization, and in such cases prognostic information can be derived from the CT appearance.
对25例小脑星形细胞瘤患者的CT扫描分析表明，小脑星形细胞瘤存在典型的一系列表现。CT在新发病灶和复发病灶的描绘及特征描述方面具有高度准确性。复发可能早在症状出现之前就能被发现。肿瘤囊肿内液体的密度是脑脊液的两倍。因此，可将其与非肿瘤性囊性病变及术后缺损相鉴别。实性或囊性肿瘤的CT表现常常与组织学分类相关，在这些情况下，可从CT表现中获取预后信息。
