Fig. 4From: Bone up on spinal osseous lesions: a case review seriesEnostosis. Axial CT image (a) of the thoracic spine demonstrates a focal sclerotic bone lesion with characteristic dense sclerosis and irregular and brush-like margins (arrow). No associated soft tissue component. Axial fused PET/CT image (b) demonstrates lack of metabolic activity of the bone lesion (arrow), confirming the diagnosisBack to article page