In which the following head and neck cancers, is lymph node metastasis least common
LN metastasis is most common in : CA tongue >Floor of mouth > Lower alvealus >Buccal mucosa > Upper Alveolus > Hard palate > lip Ref: Bailey and love 27th edition Pgno : 764-765,
Tongue
Buccal mucosa
Hard palate
Lower alveolus
Head and neck