Grasso A, Pellicanò G
Servizio di Radiologia CTO, USL 10/D, Firenze.
Radiol Med. 1991 Jul-Aug;82(1-2):60-3.
The US study of the posterior compartment of the knee usually allows the clinical suspicion of popliteal cyst to be confirmed. Nevertheless, in case of giant Baker's cysts--which are, at any rate, less frequent--US diagnosis is more difficult. CT can help determine the benign nature of the lesion, and allow an accurate spatial evaluation. Moreover CT, when accurately performed, demonstrates the caudal or cranial cystic spread, together with its clear separation from adjacent muscular tissues. Direct coronal scans are more useful to obtain better spatial definition than reformatted images.
美国对膝关节后室的研究通常能确诊临床怀疑的腘窝囊肿。然而，对于巨大的贝克囊肿（无论如何，其发生率较低），超声诊断更为困难。CT有助于确定病变的良性性质，并能进行准确的空间评估。此外，当CT操作准确时，可显示囊肿向尾侧或头侧的蔓延，以及与相邻肌肉组织的清晰分界。直接冠状位扫描比重组图像更有助于获得更好的空间分辨率。
