Learning Radiology xray montage


  • Most often occurs in 5th or 6th decades

  • Pelvis most frequent bone involved

    • Also femur, tibia, humerus

  • Most often geographic bone lesion

    • Sometimes permeative

    • Destruction of bone occurs late in disease

  • Large soft tissue mass is common

  • Frequently calcifies with punctate or circular opacities

  • May produce thickening of the cortex

  • May have periosteal reaction

  • Secondary chondrosarcoma

    • From pre-exiting skeletal lesion

      • Osteochondroma

      • Enchondroma

      • Parosteal chondroma