Fig. 2

Surgical treatment at the proximal tibia

Typical chondroid matrix (white arrows) and endosteal scalloping (red arrows) is visible in ap x-ray (a) and coronal (b) and axial (c) T1 dotarem contrast-enhanced MRI. As a result of the large biomechanical stresses on the lesion location, a compound osteosynthesis using polymethylmethacrylate bone-cement and a plate (yellow arrows in ap (d) and lateral (e) x-rays) was performed after rigorous curettage and use of a high-speed burr.