Question 355 · LEK · Bone tumors
Indicate the true statements regarding bone tumors in children:
1) osteosarcoma is the second most common bone tumor in children;
2) the characteristic feature of osteosarcoma is that it metastasizes to the lungs;
3) the first-choice diagnostic test for bone lesions is an MIBG (3-iodobenzylguanidine) scintigraphic scan;
4) methotrexate is not used in the course of treatment for osteosarcoma;
5) Ewing sarcoma can also occur in the soft tissues;
6) if distant metastases is detected (Stage IV), Ewing sarcoma is associated with a 5- year survival in 15-20% of cases.
The correct answer is:
2) the characteristic feature of osteosarcoma is that it metastasizes to the lungs;
3) the first-choice diagnostic test for bone lesions is an MIBG (3-iodobenzylguanidine) scintigraphic scan;
4) methotrexate is not used in the course of treatment for osteosarcoma;
5) Ewing sarcoma can also occur in the soft tissues;
6) if distant metastases is detected (Stage IV), Ewing sarcoma is associated with a 5- year survival in 15-20% of cases.
The correct answer is:
- A. all the above.
- B. 1, 2, 3.
- C. 3, 4, 6.
- D. 2, 5, 6.
- E. 2, 6.
Hint
Recall the commonest malignant bone tumour in children, its metastatic pattern, its chemotherapy backbone and the imaging used for bone lesions.
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