Fig. 3

Pre-op axial fat-suppressed T2W a). axial and b). sagittal images, c). pre-op CT axial images, d). post-op fat-suppressed T2W axial images, 3rd month post-op fat surpressed T2W e). axial and f). sagittal images are shown. In the pre-op images, edema is observed within the osteoid osteoma nidus at the level of the coracoid process. In the post-ablation images, it is seen that the edema within the lesion has dissolved, gradually turned into post ablation necrosis and the nidus has disappeared.