Best prognosis is seen in -

Carcinoma of oral cavity Most common type of Carcinoma of oral cavity is squamous cell carcinoma In the oral Cavity, tongue (30%) is the most common site followed by lip (17.4%) and the floor of mouth (16.4%) The mortality from squamous Carcinoma also varies by site in the mouth, with the lowest mortality from lip Cancer and the highest for Cancer of the Tongue.