The MRI findings of Stewart-Treves syndrome / 实用放射学杂志

ABSTRACT

Objective To evaluate the value of MRI diagnosis in Stewart-Treves syndrome(STS).Methods The 48 STS nodules proved by pathology were retrospectively studied,which compared the MRI findings and pathological results.Results All nodules were solid and more than 4 mm in diameter.According to the expression of D2-40 and CD31,all nodules were divided into two types.The 47 nodules were divided into STS type I(hemangiosarcoma).The MRI findings showed slightly low signal on T1 WI and slightly high signal on T2 WI,while were higher than the muscular signal.Additionally,all nodules of STS type I were remarkably enhanced.The 1 mass-like-shape cases wsa divided into STS type Ⅱb (mixed lymphangiosarcoma).The MRI findings showed heterogeneous signal on both T1 WI and T2 WI,in which the high signal was leading.And the enhancement showed the low-level inhomogeneous signal.Conclusion MRI could be a valuable tool for the diagnosis in STS because of the characteristic signal on MRI.And if combined with the history of chronic upper limb lymphedema,the diagnostic accuracy could be improved before surgery.