Question 270 · LDEK · Malignant tumors
Development of a lesion of same or similar texture should be treated as new neoplastic disease not a relapse or metastasis if the time elapsed since the termination of oral cancer treatment is:
- A. 6 months.
- B. 1 year.
- C. 3 years.
- D. 5 years.
- E. 10 years.
Hint
Field cancerization makes second primaries common; recall the time cut-off used in the Hong criteria for head and neck tumors.
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