Fig. 1From: Correction: Periosteal preservation: a new technique in resection of bone high-grade malignant tumors in children—about eleven casesEwing sarcoma of the proximal tibia in an 8-year-old boy. MR images show an extra-compartmental involvement and a partially circumferential (medial) respect for the CPU. Footnotes: arrows: axial edges; chevrons: level of the periosteal sectionBack to article page