All of the following are true about carcinoma of the hard palate except:
ALymphatic metastasis is uncommon
BLarger tumors require maxillectomy
CAssociated with reverse smoking
DMost cancers are poorly differentiated and of ulcerative variety
What is the most significant factor associated with the causation of head and neck carcinoma?
AIntravenous drug abuse
BExposure to nickel
CHistory of syphilis
DTobacco use
N3a TNM staging of head and neck tumors (AJCC 8th edition) shows:
AMetastasis in a lymph node >6 cm
BMetastasis in lymph nodes >2 cm
CMetastasis in lymph nodes >5 cm
DNone of the options
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