Primary bone cancers are extremely rare neoplasms, likely accounting for fewer than 0.2% of all cancers, although its true incidence is difficult to determine secondary to the rarity of these tumors. 1,2 In 2009, an estimated 2570 new cases will be diagnosed in the United States and 1470 people will die of the disease. 3 Primary bone cancers show wide clinical heterogeneity and are often curable with proper treatment. Osteosarcoma (35%), chondrosarcoma (30%), and Ewing's sarcoma (16%) are the 3 most common forms of bone cancer. Malignant fibrous histiocytoma (MFH) and fibrosarcoma of the bone constitute fewer than 1% of all primary bone tumors. Chondrosarcoma is usually found in middle-aged and older adults; osteosarcoma and Ewing's sarcoma The NCCN

No abstract

No abstract

Highlights • Non-destructive XPS method provides depth and width of implanted atom profiles • Measurement of plasmon peak intensities vs photoelectron emission angle • Analytical model for Gaussian, triangular and rectangular depth distributions • Model assumes that energy losses are dominated by extrinsic plasmon excitation • Application to the Ar↓Al system and comparison with Monte Carlo simulations