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目的探讨MRI对膝关节滑膜血管瘤的诊断价值。方法我院2025例膝关节MRI检查患者中经病理和临床检查证实的膝关节滑膜血管瘤7例(男2例,女5例),平均年龄25.1岁。7例术前均摄有X线平片。分析其MRI表现。结果病变仅位于髌下脂肪垫的4例,占57%,其余3例为髌下脂肪垫和髌上囊均被累及。MRI的信号改变分为3种类型:(1)T1、T2均呈低信号改变,病灶呈结节状2例;(2)T1等、低信号,T2高、低信号2例;(3)T1低信号为主,混有等信号2例;T2结节状或条状低信号、高信号混杂3例。病理组织成分不同,MRI表现各异。结论MRI表现与血管瘤的组织成分有关。
Objective To investigate the diagnostic value of MRI in synovial hemangiomas of the knee. Methods Seven cases (2 males and 5 females) of synovial hemangiomas of knee joint confirmed by pathology and clinical examination in 2025 MRI examination patients in our hospital were studied. The mean age was 25.1 years. Seven cases were preoperative X-ray film. Analyze its MRI performance. Results The lesion was only located in 4 cases (57%) of the infrapatellar fat pad, and the other 3 cases were the infrapatellar fat pad and the suprapatellar capsule. MRI signal changes are divided into three types: (1) T1 and T2 showed a low signal change, nodular lesions in 2 cases; (2) T1, low signal, T2 high and low signal in 2 cases; (3) T1 low signal mainly mixed with other signals in 2 cases; T2 nodular or strip low signal, high signal mixed in 3 cases. Different histological components, MRI performance varies. Conclusion MRI manifestations of hemangioma tissue components.