Spinal Exostosis in a Boy with Multiple Hereditary Exostoses

Figure 3

Axial CT of T3 scan showed the extent of the involvement of the left lamina and compression of the cord. The cauliflower appearance corresponds to the ossified matrix of the osteochondroma (huge intraspinal mass with heterogeneous density). This ossified matrix is surrounded by cartilage tissue, the osseous tumour originating from the left T3–5 facet joint (arrows).