In carcinoma of lower lip secondaries are seen in:
(a) submandibular LN(Ref. Cummings, 6th ed., 1364)Nodal spread from carcinoma lower lip involves submental and submandibular lymph nodes (level 1).
Oral Cavity
Submandibular LN
Preauricular LN
Mediastinal LN
Supraclavicular LN
Submandibular LN