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胸腺肿瘤分为良性胸腺瘤、浸润性胸腺瘤、胸腺癌,其最终确诊依赖病理组织学。为探讨其MRI诊断价值,作者对18例胸腺肿瘤进行了分析。其中胸腺瘤10例(浸润性胸腺瘤占6例),男4例,女6例,年龄24～71岁。手术9例,另1例活检确诊。胸腺癌8例,男3例,女5例,年龄45～86岁。手术5例,另3例经活检确诊,其中扁平上皮癌5例,淋巴上皮癌、类癌、未分化癌各1例。 采用1.0T和0.5T超导型MR仪,自旋回波序列。15例行T_1WI和T_2WI,3例仅行T_1WI,11例
Thymic tumors are divided into benign thymomas, invasive thymomas, and thymic cancers, whose final diagnosis depends on histopathology. To investigate the diagnostic value of MRI, the author analyzed 18 cases of thymic tumors. There were 10 cases of thymoma (infiltrating thymoma in 6 cases), 4 males and 6 females, aged 24 to 71 years old. Nine patients underwent surgery and the other confirmed biopsy. There were 8 cases of thymic carcinoma, 3 males and 5 females, aged 45-86 years old. Five patients underwent surgery, and the other 3 patients were confirmed by biopsy. Among them, 5 had squamous cell carcinoma, 1 had lymphoepithelial carcinoma, 1 carcinoid, and 1 had undifferentiated carcinoma. Using 1.0T and 0.5T superconductivity type MR instruments, spin echo sequences. 15 patients underwent T_1WI and T_2WI, 3 patients underwent T_1WI only, 11 patients