Carcinoma of the lip is characterized by the following except that -
Lymph node metastases in lip cancer is not common. Seen in less than 10% cases.

Most common site of lip cancer is lower lip (88 to 98%) > upper lip (2 to 7%) > oral commissure (1%).
Most common cancer is squamous cell carcinoma.
Most common cancer for upper lip is Basal cell carcinoma.