【摘要】 目的 探讨原发性骨关节肿瘤及肿瘤样病变MR征象及其诊断价值。 方法 对59例原发性肌肉骨关节肿瘤及肿瘤样病变行MR常规及强化扫描并经病理证实。 结果 61.5%的肿瘤边缘可见低信号带;明显的瘤周水肿(25%)仅见于恶性肿瘤及呈侵蚀性生长的良性病变;邻近结构受侵征象在恶性肿瘤中的出现率(69.6%)明显高于良性(17.2%);信号分布均匀性程度在良、恶性病变中有较高的重叠性。 结论 综合分析肿瘤MR征象对鉴别原发性肌肉骨关节肿瘤及肿瘤样病变的良、恶性有价值。

    关键词 骨肿瘤 核磁共振 诊断价值

    MRI in diagnosis of primary musculoskeletal neoplasms

    Liu Junhua

    Heze Municipal Hospital，Shandong274031.

    【Abstract】 Objective The diagnostic value of the MR-signs of the primary musculoskeletal neoplasms was studied.Methods MR scanning was performed on59cases of primary musculoskeletal neoplasms proved by surgery and pathology.Statistical analysis was used to test f or the differences in4MR-signs between the benign and malig-nant tumors.Results (1)Low signal belt(LSB)of perineoplasm was observed in36of59neoplasms(61.5%).(2)Marked Perineoplastic edema was presented in13of59cases(22%).(3)The incidence of the invasive signs of the adjacent structures in malignant neoplasms(69.6%)was significantly higher than in benign ones(17.2%).(4)The rate of homogeneous signal intensity and heterogeneous signal intensity showed in benign and malignant lesions were20.7%/79.3% ......