软组织血管源性肿瘤的MRI诊断

目的 评价MRI对软组织血管源性肿瘤的诊断价值。材料与方法 14列软组织血管源性肿瘤的部位、信号强度等MRI表现。结果 13例良性肿瘤中，海绵状血管瘤7例，肌肉内血管瘤2例，混合型血管瘤、蔓状血管瘤、血管球瘤、血管瘤病各1例，瘤血管成分在T1WI上呈等信号，T2WI上呈高信号，肿瘤有不等量的纤维组织和脂肪组织；血管外皮细胞瘤1例，T1WI上呈略低信号，T2WI上呈略高信号。结论 良性血管瘤MRI检查可以确诊，血管外皮细胞瘤符合恶性肿瘤表现，但无法进行组织学判断。

MRI Diagnosis of Angiogenic Tumors in Soft Tissue

Objective To evaluate MRI in the diagnosis of angiogenic tumors in soft tissue.Materials and Methods MRI findings, including the site of the lesion, signal intensity, etc. in 14 patients with angiogenic tumors of the soft tissue ( 13 benign tumors and 1 malignant tumor) were analyzed.Results Benign hemangiomas included cavernous (n=7), intramuscular (n=2), mixed (n=1), racemosum (n=1), glomus (n=1) and angiomatosis (n=1). The vascular component within the tumor displayed iso intensity on T 1WI relative to the skeletal muscle, and hyper intensity on T 2WI. One case of hemangiopericytoma showed slightly low signal on T 1WI and slightly high signal on T 2WI.Conclusion Based on the manifestations, MRI can make a correct diagnosis for benign hemangiomas, while for the hemangiopericytoma MRI can only detect its malignancy and can not make a specific diagnosis.