Fig. 2From: Secondary malignant giant cell tumor of bone due to malignant transformation 40 years after surgery without radiation therapy, presenting as fever of unknown origin: a case reportMagnetic resonance imaging. Coronal section: a T1-weighted image, b T2-weighted image. Transverse section: c T1-weighted image, d short T1 inversion recovery. Fluid retention can be seen in the medial femur and intra-articular area. T1-weighted images of the intra-osseous area show a low to isosignal intensity, and T2-weighted images showed an isosignal to high signal intensity. There are no masses in the extra-osseous areaBack to article page