Oral Squamous Cell Carcinoma By Bradley A Schiff, MD, Montefiore Medical Center, The University Hospital of Albert Einstein College of Medicine Reviewed / Revised Dec 2022 View Patient Education Symptoms and Signs Diagnosis Prognosis Treatment Key Points More Information Topic Resources Oral Squamous Cell Carcinoma Erythroplakia and Squamous... Leukoplakia and Squamous... Staging of Lip and Oral Cancer Oral cancer refers to cancer occurring between the vermilion border of the lips and the junction of the hard and soft palates or the posterior one third of the tongue.