CAJ | 학술논문

目的探讨腘窝囊肿MRI表现和诊断价值.方法回顾性分析经手术或穿刺证实的30例腘窝囊肿的临床及MRI 资料.结果30例腘窝囊肿均位于腓肠肌内侧头与半膜肌间隙,其中关节囊滑膜疝18例,呈圆形、卵圆形或水滴样外观,前方以一“细颈”通关节腔；腓肠肌-半膜肌滑囊积液12例(Baker’s 囊肿),呈圆形、卵圆形或“葫芦”状,呈“鸟嘴”状狭颈与关节腔相通6例.囊肿表现为单房23例,因囊内纤维性分隔而表现为两房或多房状7例.病变最大径线0.5~6.0cm,T1WI呈均匀低信号,T2WI表现为均匀高信号,STIR呈明显高信号,囊肿壁菲薄而均匀,呈中等信号,邻近结构不同程度受压.30例腘窝囊肿合并半月板损伤14例,退变性骨关节病11例,慢性膝关节滑膜炎4例,半月板退变7例,韧带损伤3例,骨性关节炎1例,滑膜骨软骨瘤病1例.仅表现为腓肠肌-半膜肌滑囊积液而无关节内疾患1例.结论 MRI不仅对腘窝囊肿敏感性高且诊断准确,还可以观察膝关节其他的病变情况,有利于临床拟定合理的治疗方案.
목적탐토객와낭종MRI표현화진단개치.방법회고성분석경수술혹천자증실적30례객와낭종적림상급MRI 자료.결과30례객와낭종균위우비장기내측두여반막기간극,기중관절낭활막산18례,정원형、란원형혹수적양외관,전방이일“세경”통관절강；비장기-반막기활낭적액12례(Baker’s 낭종),정원형、란원형혹“호호”상,정“조취”상협경여관절강상통6례.낭종표현위단방23례,인낭내섬유성분격이표현위량방혹다방상7례.병변최대경선0.5~6.0cm,T1WI정균균저신호,T2WI표현위균균고신호,STIR정명현고신호,낭종벽비박이균균,정중등신호,린근결구불동정도수압.30례객와낭종합병반월판손상14례,퇴변성골관절병11례,만성슬관절활막염4례,반월판퇴변7례,인대손상3례,골성관절염1례,활막골연골류병1례.부표현위비장기-반막기활낭적액이무관절내질환1례.결론 MRI불부대객와낭종민감성고차진단준학,환가이관찰슬관절기타적병변정황,유리우림상의정합리적치료방안.
Objective To evaluate the MRI manifestations and diagnostic value of popliteal fossa cyst. Methods:Review retrospectively the MRI and clinical data of 30 patients with popliteal fossa cyst confirmed by surgical operation or aspiration. Results: All the popliteal fossa cyst of 30 patients were located between the semimembranosus and themedialhead of the gastrocnemius.18 had herniations of the posterior cysts of the knee joint. They were of water-dropped and ring-like shape. And connected to the joint cavities anteriorly by narrow necks. 12 had dialatations of gastrocnemius-semimembranosus synovial capsules, they were round,oval and gourd-like. 6 of them connected to the joint cavities by birdmouth-like narrow necks. The dameter of popliteal fossa cyst varies from 0.5cm to 6.0cm.They were hypointense on T1WI and hyperintense on both T2WI and fat-saturated T2WI. The walls of cysts were membrane-like, and had the same density and signal as muscle. The adjiacent structures of cyst were oppressed in various degrees.14 had meniscus injuries, 11 had degenerations of the knee joints, 4 had chronic synovial inflammations of the knee joints, 7 had meniscus degenerations, 3 had injuries of fibular and tibial collateral ligaments and cruciate ligaments of knee, 1 had synovial chondromatosis, 1 had osteoarthritis, and1 had only gastrocnemius-semimembranosus synovial capsules without joint lesions. Conclusion: MRI is sensitive and accurate to popliteal fossa cyst. It can detect lesions of the knee joints simultaneously and will be important to clinical treatment method