手部常见软组织肿瘤的MRI表现

摘要

Objective:To investigate the clinical data and MRI features of common soft tissue tumors of the hand. Methods:53 cases of common soft tissue tumors of the hand proved by pathology were analysed retrospectively. All of the cages underwent MRI plain scan and 38 cases underwent MRI enhanced scan. Results:Out of 53 soft tissue tumor patients,giant cell tumor of tendon sheath were present in 17 patients,hemangioma in 12 patients,glomus tumor in 11 patients,ganglion in 8 patients,lipo-ma in 5 patients. Conclusion:Common soft tissue tumors of the hand have typical MRI expression. MRI can be used as a routine assistant examination for soft tissue tumors of the hand,and it is the first choice for the diagnosis of soft tissue tumors in the hand.%目的：探讨手部常见软组织肿瘤的MRI特点。方法：对53例经病理确诊的手部常见软组织肿瘤的临床资料及MRI特点进行回顾性分析，53例均行MRI平扫，其中38例行MRI增强扫描。结果：53例中腱鞘巨细胞瘤17例，血管瘤12例，血管球瘤11例，腱鞘囊肿8例，脂肪瘤5例。 MRI表现：腱鞘巨细胞瘤T1WI多呈等低信号，T2WI呈高低混杂信号，边缘多可见低信号包膜影，增强扫描多明显强化；血管瘤T1WI多呈以稍高信号为主的混杂信号，PDWI多呈不均匀高信号，瘤内多可见出血，增强扫描不均匀明显强化；血管球瘤T1WI呈等低信号，PDWI呈高信号，增强扫描明显均匀强化；腱鞘囊肿T1WI呈稍低信号，PDWI呈高信号，部分瘤内可见线状低信号分隔影，增强扫描包膜强化；脂肪瘤T1WI呈高信号，PDWI及STIR呈低信号。结论：手部常见软组织肿瘤多具有典型的MRI表现，MRI可作为诊断手部软组织肿瘤的首选方法。