ocr: Maximal Extent Defnition El Tumor touches but does not elevate or penetrate the periosteum E2 Tumor elevates but does not penetrate the perios- teum E3 lumor penetrates into but not through the perios- teum E4 Minimal extraperiosteal extension, not into a de- fined structure or space, seen . asanodule of tumor of one centimeter or less in fat just outside the periosteum, where muscle does not insert onto bone; the nodule often lies next to a small artery and may represent a small venous embolus that has destroyed the wall of the vein E5 lumor invades any one of the following: tendon; ligament; ...
