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Fig. 3 | Insights into Imaging

Fig. 3

From: Lesions involving the outer surface of the bone in children: a pictorial review

Fig. 3

Benign solitary osteochondroma of the tibia in a 15-year-old boy. Lateral  radiograph of the knee a shows a bony protrusion arising off the posterior aspect of the proximal tibial metaphysis; note the continuity with the medullary cavity of the underlying tibia (arrow). Sagittal b and axial c T2 MR images show a markedly hyperintense, thin cartilage cap surrounding this bony exostosis; an axial T1 post contrast MR image d reveals a thin, peripherally enhancing cartilage cap (arrow)

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