A 64-year old male who was presented with a two-year history of right lower lip lesion which was slowly enlarging. At presentation, this lesion was red and ulcerated and was firm but not painful. It was 1.5 x 1.5 cm in greatest dimensions. The patient gives a 30 plus year history of smoking and indicates that “the ulcer is right where I hold my cigarette”. Past medical history His past medical history is significant for 30 pack-years of smoking cigarettes.
He admitted occasional alcohol use, drinking mainly beer and wine. His only other significant medical history is a seizure disorder well controlled with Phenytoin. Clinical investigation The clinical examination revealed a 1.5 X 1.5 cm ulcerated red and white mass with rolled borders located on the right side of the lower lip near the commissure area. There were no palpable lymph nodes. What can be the probable diagnosis for this…