GIANT CELL TUMOR (OSTEOCLASTOMA)

  • Osteoclastoma occurs in the epiphysis
  • Chondroblastoma is a variant of Giant cell tumor
  • Giant cells seen in Osteoclastoma & Chondroblastoma
  • 5 - 10% of giant cell tumor of bone are malignant
  • Giant cell tumor of tendon sheath is benign tumor
  • Differential diagnosis of a lesion, histologically resembling giant cell tumour in the small bones of the hand/feet, include Enchondroma, Hyperparthyroidism & Aneurysmal bone cyst
  • Soap bubble appearance is seen in Osteoclastoma
  • Age group affected by osteoclastoma is 20-40 years
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