Figure 13b. Coronal (a) and sagittal (b) spoiled GRE (6.1/1.6; flip angle, 15°) MR arthrograms obtained in a 59-year-old woman 1 month after autologous chondrocyte implantation show a small cyst (arrow) and adjacent partial delamination (arrowhead) in the interface between native and transplanted cartilage at the left lateral femoral condyle. F = femur, T = tibia.