Giant-Cell Tumors of Bone

IN 1920 Dr. E. A. Codman, of Boston, organized the Registry of Bone Sarcoma. A committee consisting of Dr. Codman, Dr. Ewing and Dr. Bloodgood studied a large number of cases of bone tumors, and from them they separated a group of benign giant-cell tumors. Up to that time many limbs had been amputated on the supposition that a giant-cell tumor was a malignant condition. With its benignity thus well established Dr. Codman§ laid down certain general principles deduced from his study: The expansion and progress of these tumors is due to their pulsation, not to the malignant quality of . . .