Lymph mode metastasis in neck is almost never seen with:
Ans. A Carcinoma of vocal cords. Ref. Dhingra Sth/ed p 327, 6th/ed p 309 "There are very few lymphatics in vocal cords and nodal metastasis are practically never seen in cordallesions unless ithas spread beyond the region of membranous cord.
Carcinoma vocal cords
Supraglottic carcinoma
Carcinoma of tonsil
Papillary carcinoma thyroids