Squamous cell carcinoma: Cancer that begins in squamous cells -- thin, flat cells that look under the microscope like fish scales. Squamous cells are found in the tissue that forms the surface of the skin, the lining of hollow organs of the body, and the passages of the respiratory and digestive tracts. read more
Squamous cell carcinoma is one type of skin cancer. Learn more about the signs and symptoms of squamous cell carcinoma and what it looks like on your body. read more