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目的探讨MRI对软组织肿瘤的诊断价值。方法收集2001年10月至2004年8月180例软组织病变患者的MRI资料进行回顾性分析,男78例,女102例;年龄4～70岁,平均32岁;均以疼痛、软组织肿胀伴肿块形成为主要征象。全部病例均经手术、病理证实为软组织肿瘤。采用美国Picker公司0.23T开放式磁共振扫描装置。常用脉冲序列为快速自旋回波T1WI和T2WI及短时回复序列脂肪抑制成像。检查平面包括冠状面,矢状面,横断面。180例软组织病变中,软组织良性肿瘤153例,其中肌肉血管瘤52例,腱鞘巨细胞瘤34例,神经源性肿瘤26例,脂肪瘤23例,硬纤维瘤18例;软组织恶性肿瘤17例,其中恶性纤维组织细胞瘤7例,恶性淋巴瘤3例,脂肪肉瘤2例,软骨肉瘤、肌纤维肉瘤、黑色素瘤、面部肉瘤、平滑肌肉瘤各1例;类肿瘤病变10例,其中骨化性肌炎2例,脂肪坏死8例。良、恶性肿瘤比例为9∶1。手、足部腱鞘巨细胞瘤(33/34例)、血管瘤(23/52例)较为常见;恶性纤维组织细胞瘤常累及大腿(大腿4/7例)和上臂(3/7例);发生于腹股沟的肿物多为恶性(4/5例)。结果良性肿瘤直径为1~18cm,恶性肿瘤直径为4~10cm。肿瘤形态不规则,多呈分叶状、类圆形。病变组织T1WI多为等或等低信号,T2WI多为等高信号或以高信号为主的混杂信号。神经源性肿瘤好发于皮下脂肪或肌肉间,形成囊实性
Objective To investigate the diagnostic value of MRI in soft tissue tumors. Methods The MRI data of 180 patients with soft tissue lesions collected from October 2001 to August 2004 were retrospectively analyzed. There were 78 males and 102 females, aged from 4 to 70 years old, with an average of 32 years. All of them were painful, soft tissue swelling with lumps Formed as the main signs. All cases were surgically confirmed pathologically as soft tissue tumors. US Picker 0.23T open magnetic resonance scanner. Commonly used pulse sequence for fast spin echo T1WI and T2WI and short-term response sequence fat suppression imaging. Check the plane, including coronal, sagittal, cross-section. Of the 180 soft tissue lesions, 153 were soft tissue benign tumors, including 52 cases of muscular hemangiomas, 34 cases of giant cell tumor of tendon sheath, 26 cases of neurogenic tumors, 23 cases of lipomas, 18 cases of hard fibroids, 17 cases of soft tissue malignant tumors, One malignant fibrous histiocytoma in 7 cases, 3 cases of malignant lymphoma, 2 cases of liposarcoma, chondrosarcoma, myofibrosarcoma, melanoma, facial sarcoma, leiomyosarcoma in 1 case; 10 cases of tumor-like lesions, of which ossifying myositis 2 cases, 8 cases of fat necrosis. The ratio of benign and malignant tumors is 9: 1. Hand and foot tendon sheath giant cell tumor (33/34 cases), hemangioma (23/52 cases) is more common; malignant fibrous histiocytoma often involve thigh (thigh 4/7 cases) and upper arm (3/7 cases); Occur in the inguinal masses were mostly malignant (4/5 cases). Results The diameter of benign tumor was 1 ~ 18 cm and the diameter of malignant tumor was 4 ~ 10 cm. Tumor irregular shape, mostly lobulated, round-like. Tissue T1WI mostly equal or low signal, T2WI mostly high signal or high signal-based mixed signal. Neurogenic tumors occur in the subcutaneous fat or muscle, the formation of cystic solid