Objective To explore the clinicopathologic features and diagnosis and differential diagnosis of High-grade surface osteosarcoma.

Perioperative nursing of combination treatment salvaging limbs for limbs malignant bone tumor;

Clinical Study on CT-guided Percutaneous Microwave Ablation for Malignant Bone Tumor

Objective:To discuss the treatment of malignant bone tumors of proximal humerus by the replacement of artificial shoulder joint.

Progress of local chemotherapy for the malignant bone tumors;

Methods: We treated 68 patients suffered malignant bone tumors from 1990 to 2002 by limb salvage surgery.

Conclusion The findings suggest that telomerase activity should be associated with tumor aggressiveness and might play an important role in prediction of the prognosis of patients with malignant bone tumors.