Fig. 12From: MRI characteristics of cysts and “cyst-like” lesions in and around the knee: what the radiologist needs to knowSubarticular cyst (geode). The sagittal fat saturated proton density weighted image shows a cystic lesion (asterisk) in the subarticular surface of the lateral tibial condyle at the proximal tibiofibular joint. Note chondral defects of the tibial-femoral articular surfaces (black arrows)Back to article page