Bone lesions, the age group affected and their sites of origin

Knowing the age group in which bone lesions appear can be very crucial in the diagnosis of diseases concerned.The site of lesion is also important in diagnosing these diseases and determining appropriate treatment.

  1. Ewings sarcoma – 5 -15yrs
  2. Osteoid osteoma -5 -25yrs
  3. Osteosarcoma – 10 -20 yr, >40 yrs
  4. Osteoclastoma -20- 40 yrs
  5. Multiple myeloma – > 60yrs
  6. Perthes disease – 5 -10yrs
  7. Nutritional rickets – 1-2yrs
  8. Polio -1-2 yrs
  9. Acute Osteomyelitis -< 15 yrs
  10. Rheumatoid arthritis – 20-40 yrs
  11. Slipped capital femoral epiphysis -12 -16yrs
  12. Intervertebral disc prolapse -2 -40 yrs

Sites of Origin

Most of the bone tumours are diaphyseal in origin.

Epiphysis

  1. Osteoclastoma
  2. Chondroblastoma

Metaphysis

  1. Osteosarcoma
  2. Osteomyelitis
  3. Brodies abscess

Diaphysis

  1. Ewings sarcoma
  2. Osteoid Osteoma
  3. Multiple myeloma
  4. Bone secondaries
  5. Lymphoma
  6. Adamantinoma

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