Malignant Bone Tumors

Bone Tumors - A Challenge for Cooperation E. GRUNDMANN Among the wide variety of human tumors, those of the skeletal system have an exceptional position in several respects. Above all, they are comparatively rare, and that is why reliable diagnostic criteria were compiled only recently, that is during the last three decades. It is only five years since the outlines of an international code of classi­ fication were traced. The code was applied and discussed critically and with varying results by