Fig. 4From: Differential CT and MR imaging diagnosis between low- and high-grade malignant vascular tumors of boneCase 14–15: Case 14, a Axial CT image demonstrates a large mixed lytic-sclerotic lesion, with a massive soft tissue mass confined to bone. b Axial fat-supressed T2-weighted MR image shows a high hetergeneous signal indicating cystic/necrosis components (white arrow) inside the lesion. Case 15, c Unenhanced CT image at bone window settings shows bone destruction with purely lytic appearance with discontinuous cortex and paraspinal mass. d, e Sagittal T1-weighted image and fat-suppressed T1-weighted postcontrast image show a heterogeneous hyperintensity and mild compression of the vertebral bodyBack to article page