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Fig. 16 | Insights into Imaging

Fig. 16

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

Fig. 16

Parosteal osteosarcoma on the left distal posterior femur. A lateral radiograph of the left knee a shows a large exophytic mass with central dense ossifications adjacent to the femur (arrow). Sagittal T1 b and T2 c MR images demonstrate heterogeneous signal through this large soft-tissue tumor on both T1 and T2. A sagittal T1 post-contrast image d reveals heterogeneous contrast enhancement (arrow)

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