Tumours Oral Cavity Larynx

Oral cavity, pharyngeal, and laryngeal cancers usually form in the squamous cells (thin, flat cells lining the inside of the oral cavity, pharynx, and larynx). Oral cavity cancer forms in any of these tissues of the oral cavity: The lips. The front two thirds of the tongue.

More than 90 percent of mouth cancers are squamous cell carcinoma. Squamous cells are thin, flat cells that look like fish scales. They are found in the tissue that forms the surface of the skin, the lining of the hollow organs of the body, and the lining of the respiratory and digestive tracts.