Second primary tumor of head and neck is most commonly seen in malignancy of:
Ans. (a) Oral cavityRef: Bailey and Love Page 712* Field cancerization:# This is a phenomenon in which the risk factors like smoking, HPV etc., stimulate the growth of similar cancer in other sites with same predisposing factors.# Such Phenomenon is common in oral cavity cancer. They are highly prone to Lung cancer and other head and neck cancers due to field cancerization.
Oral cavity
Larynx
Hypopharynx
Paranasal sinuses
Oral Cavity