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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 ,对脉络膜恶性黑色素的诊断具有重要的临床价值
Objective: To investigate the diagnostic value of imaging examination of choroidal melanoma. Methods : Ultrasound, fundus fluorescein angiography, CT and MRI were used to diagnose 31 cases of choroidal melanoma. Ultrasound and fundus fluorescein angiography were performed in 20 patients. Ultrasound and CT in 7 cases, ultrasound and MRI in 4 cases. RESULTS: B-mode ultrasonography and computed tomography (CT) showed semi-circular density lesions. Fundus fluorescein angiography showed spot-like leakage and enlargement. MRI showed T1-weighted images with high signal intensity and T2-weighted images with low signal intensity. Conclusion :B-ultrasound examination combined with fundus fluorescein angiography or combined with CT and MRI can fully reveal the imaging features of choroidal melanoma, and have important clinical value in the diagnosis of choroidal melanoma.