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目的 :研究脑胶质瘤术后不同时期CT表现 ,旨在提高术后CT诊断水平。方法 :随访 40例经手术病理证实的脑胶质瘤术后患者 ,术后不同时期进行CT扫描。结果 :肿瘤残存 10例 ( 2 5 % ) ,术后 2～ 5天内呈结节状、块状、环状强化 ,强化环不规则 ,厚薄不均 ;1周～ 3个月内术区残腔边缘呈“正常”反应性环状强化 2 0例 ( 5 5 6 % ) ,强化环厚薄均匀 ,光滑整齐或不规则 ;3个月后术区边缘或远处肿瘤复发 12例 ( 3 0 % ) ,呈结节状、环状、不规则团块状强化 ,大部分“正常”反应性环状强化消失 ,残存肿瘤随时间的延长而增大。结论 :CT扫描是脑胶质瘤术后随访观察的有效手段
Objective: To study the CT features of gliomas at different stages after surgery to improve the postoperative CT diagnosis. Methods: Forty patients with glioma confirmed by surgery and pathology were followed up for CT scan at different stages after operation. Results: The residual tumor was found in 10 cases (25%) with nodular, massive and annular enhancement within 2 to 5 days after operation. The irregular ring was strengthened and the thickness was not uniform. Within 1 week to 3 months, The margin was “normal” reactive ring enhancement in 20 patients (55.6%), with uniform, smooth and tidy ring thickness irregularities. At 3 months, 12 cases (30%) had edge recurrence or distant tumor recurrence. , Nodular, annular, irregular mass enhancement, most of the “normal” reactive ring enhancement disappear, the residual tumor increases with time. Conclusion: CT scan is an effective method to observe the postoperative follow-up of glioma