Figure 5a. Cartilage fissure after trauma. Sagittal fast SE image obtained without fat suppression (a) and sagittal 3D spoiled GRE image obtained with fat suppression (b) show a cartilage fissure in the lateral patella (arrow). The fissure is outlined by bright synovial fluid on the fast SE image (a), but the underlying cartilage is better seen on the spoiled GRE image (b).