脉络膜恶性黑色素瘤的影像诊断(附31例分析)

The diagnostic imaging of choroidal malignant melanoma(report of 31 cases)

目的 :探讨脉络膜恶性黑色素瘤影像检查的诊断价值。方法 :采用超声、眼底荧光血管造影、CT、MRI检查诊断脉络膜恶性黑色素瘤 31例。其中超声与眼底荧光血管造影 2 0例。超声与CT 7例 ,超声与MRI 4例。结果 :B超及CT显示半圆形密度均等肿块 ,眼底荧光血管造影表现为斑点状渗漏并扩大 ,MRI示T1加权像中到高信号 ,T2 加权像为低信号。结论 :B超检查与眼底荧光血管造影或与CT、MRI的联合应用能充分显示脉络膜恶性黑色素瘤的影像特征 。

Objective:To investingate the diagnostic value of imaging examination.Methods:31 cases of choroidal malignant melanoma confirmed by pathological examination were studied.20 cases were examined by ultrasonography and FFA (fundus fluorescence angiography).7 cases by ultrasonography and CT and 4 cases by ultrasonography and MRI.Results:B-ultrasonography and CT showed a mass of semi-round and isodensity,FFA showed a spot-little leakage and spread rapidly,MRI T 1 is middle to high signal,T 2 is a low signal.Conclusion:B-mode ultrusonography and FFA combined with CT,MRI show the imaging characteristic of choroidal melanoma and have important clinical value.