Lerais J M, Baudrillard J C, Durot J F, Segal P, Tellart M O, Wallays C, Auquier F, Toubas O, Petit J
J Radiol. 1986 Mar;67(3):201-7.
Two patients with true synovial cysts in atypical sites (internal compartment of knee and inguinal hollow) were investigated by radioarthrography, ultrasound and computed tomography imaging. The cyst in the hip region originated from a dilated serous bursa of the iliopsoas muscle that did not communicate or was no longer in communication with the joint. In contrast, the cyst of the knee appeared to be a lateral synovial capsule hernia. Positive diagnosis in both cases was dependent on combined ultrasound-CT scan imaging, this eliminating a tumor (sarcoma) of soft tissues. However, affirmation of the synovial origin (mesothelial covering of the wall) of the lesion was obtained by histology only, this allowing differentiation from a "capsular" (fibrous wall) cyst, which probably provokes similar ultrasound and CT scan images.
对两名在非典型部位（膝关节内侧间室和腹股沟凹陷）出现真性滑膜囊肿的患者进行了关节造影、超声和计算机断层扫描成像检查。髋部区域的囊肿起源于髂腰肌扩张的浆液性滑囊，该滑囊与关节不连通或不再连通。相比之下，膝关节囊肿似乎是外侧滑膜囊疝。两例病例的阳性诊断均依赖于超声-CT联合扫描成像，从而排除了软组织肿瘤（肉瘤）。然而，只有通过组织学检查才能确定病变的滑膜起源（壁层间皮覆盖），这有助于与“包膜性”（纤维壁）囊肿相鉴别，后者可能产生类似的超声和CT扫描图像。
