外周软组织血管瘤MRI表现与病理对照分析(附32例报告)

Peripheral soft tissue hemangioma:MRI and histo-pathologic correlation(a report of 32 cases)

目的分析软组织血管瘤的MRI表现。方法收集32例软组织血管瘤,对MRI表现与病理作了对照研究。结果海绵状血管瘤15例(46.9%),MRI呈梭形团块状或不规则形;蔓状血管瘤9例(28%),呈扭曲成团或蜂窝状的蔓状结构;毛细血管瘤5例(15.6%),呈长形块状;混合型血管瘤3例(9.4%),呈形态不规则的块状瘤体。T1WI血管瘤与肌肉呈等或略高信号强度,T2WI显著高于肌肉信号。其中杂夹不同信号,病理上代表为纤维组织、增生的平滑肌、脂肪、淋巴组织、血栓形成和钙化。结论MRI能对大多数软组织血管瘤作出正确的定位和定性诊断。

Objective To analyze the MRI findings of hemangiomas derived from soft tissue. Methods MRI was performed on 32 cases with mass in the peripheral soft tissue. All cases were confirmed to be hemangioma histo-pathologically. Results The masses were classified as four patterns on this series, namely： cavernous hemangiomas, 15 cases （46. 9% ）, displayed as a spindle-shaped or irregular mass; Racemose, 9 cases （28%）, had an honeycombed or racemose appearance; Capillary, 5 cases （15.6%）, with an elongated mass-like configuration; Mixed, 3 case（9. 4% ）, showed as an amouphus mass. The masses usually had equal or higher signal intensity as compared to muscle on T1WI and markedly high signal intensity on T2WI. Focal inhomogeneities of the lesions in pathological study represent areas of fibrosia, fat, thrombosis, smooth muscle or calcificatin. Conclusion MRI is an useful tool not only to identifying the locatoion of the mass but also could specify the peripheral soft tisure hemangioma.