SEER is an authoritative source of information on cancer incidence and survival in the United States. SEER currently collects and publishes cancer incidence and survival data from population-based cancer registries covering approximately 28 percent of the U.S. population.
Primary site must be bone (C400-C419). The most common bones involved are the vertebrae. The thoracic vertebrae are more commonly involved then the cervical or lumbar. Other common bones include the ribs, skull, pelvis, femur, clavical, and scapula.