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目的 探讨脉络膜黑色素瘤的MRI表现.方法 回顾性分析近2年来在郑州大学人民医院就诊的18例经病理证实的脉络膜黑色素瘤患者的临床及影像学资料.所有患者均行MRI眼部常规扫描,其中14例行MRI Gd-DTPA增强扫描.结果 18例脉络膜黑色素瘤MRI表现为T1WI呈稍高或高信号,T2WI均呈低信号,Gd-DTPA增强后病灶实质部分明显强化.结论 脉络膜黑色素瘤的MRI表现较为典型,MRI检查可以清晰地显示病灶及周围情况,结合临床及其他相关检查资料,可以提高其诊断符合率.“,”Objective To investigate the MRI manifestations of choroidal melanoma.Methods The clinical and imaging manifestations of 18 patients with pathology confirmed choroidal melanoma were retrospectively analyzed.All of the patients had performed MRI plain scan and contrast enhancement scan of orbit.Results The lesions were found to be hyperintense on TIWI and hypointense on T2WI,moderately enhanced after contrast enhancement scan.Lesions could be more clearly assessed on post enhancement.Conclusions The MRI manifestation of choroidal melanoma is typical,the diagnostic accuracy could be improved with combination of clinical data and other physical examination.