MR images obtained in an adolescent with metastatic Ewing sa | Figure 1

CincyKidsRad

Cincinnati Children's Radiology

MR images obtained in an adolescent with metastatic Ewing sarcoma

Sagittal (image 1) and axial (image 2) T1-weighted postcontrast MR images obtained in an adolescent with metastatic Ewing sarcoma show a skull metastasis affecting both the inner and outer table of the skull. Anterior and posterior projection from whole-body technetium 99m-MDP bone scan (image 3) show metastases affecting the skull, vertebral bodies, pelvis, humeri, ribs, and sacrum. Ewing's sarcoma is the second most common primary bone malignancy in children after osteosarcoma. The median age at time of diagnosis is 15 years. When metastases occur, they most commonly affect the lungs and bones.

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