Seymour R, Lloyd D C
Department of Radiology, Cardiff Royal Infirmary, United Kingdom.
J Clin Ultrasound. 1998 Jan;26(1):15-20. doi: 10.1002/(sici)1097-0096(199801)26:1<15::aid-jcu4>3.0.co;2-m.
This study was conducted to define the sonographic appearances of cysts of the tibial menisci.
Thirteen cases of meniscal cyst, proven by magnetic resonance imaging (MRI), were assessed using high-resolution sonography, and results of the 2 imaging modalities were correlated.
Seven meniscal cysts were lateral to the joint line, and 6 were located medially. MRI showed all 13 cysts to be associated with a tear of the adjoining meniscus. On sonograms, cyst size varied from 9 to 56 mm. Echotexture varied from uniformly hypoechoic or hypoechoic with echogenic septa to heterogeneously hyperechoic. Septated cysts were demonstrated by MRI and sonography.
Because of their diverse echo patterns, meniscal cysts may be easily mistaken for soft-tissue tumors, ganglions, or other lesions, which may result in surgery being inappropriately recommended. This is particularly true in the case of echogenic cysts. The cardinal sonographic characteristic of a meniscal cyst is its continuity with the meniscus, not its echotexture.
本研究旨在明确胫骨半月板囊肿的超声表现。
对13例经磁共振成像（MRI）证实的半月板囊肿患者进行高分辨率超声评估，并对比两种成像方式的结果。
7例半月板囊肿位于关节线外侧，6例位于内侧。MRI显示所有13个囊肿均与相邻半月板撕裂有关。超声检查中，囊肿大小从9毫米至56毫米不等。回声特征从均匀低回声或伴有高回声分隔的低回声到不均匀高回声各不相同。MRI和超声均显示有分隔的囊肿。
由于半月板囊肿回声模式多样，可能容易被误诊为软组织肿瘤、腱鞘囊肿或其他病变，进而导致不恰当的手术建议。对于高回声囊肿尤其如此。半月板囊肿的主要超声特征是其与半月板的连续性，而非回声特征。
