Osteosarcoma MCQ 4+

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• Regarding Ewing's sarcoma
  ক

  The patient presents with pain and swelling.

  খ

  Chemotherapy has a dramatic effect on the tumour.

  গ

  Arises from endothelial cells in the bone marrow.

  ঘ

  It occurs commonly at 6th decade.

  ঙ

  Microscopically the tumour is lobulated

  চ

  and often fairly long.
• Following are the classic features of osteosarcoma
  ক

  Commonest bone tumour

  খ

  Typically occurs at metaphyseal ends of long bones

  গ

  Lesion is frequently associated with periosteal elevation

  ঘ

  An extra osseous soft tissue component to the tumor is common

  ঙ

  Occurs at 4th and 5th decade of life
• Osteosarcoma
  ক

  Is a highly malignant bone tumour

  খ

  Is more common in 2nd decade

  গ

  Is sensitive to usual chemo and radiotherapy

  ঘ

  Arises from osteocyte cell

  ঙ

  Is more common in epiphyseal region
• Radiological features of osteosarcoma are
  ক

  Presence of Codman's triangle

  খ

  Sun ray spicule

  গ

  May be associated with pathological fracture

  ঘ

  Soap bubble appearance

  ঙ

  Cut onion appearance