<unk>  (or mouth cancer) is a type of head and neck cancer that involves any cancerous tissue growth located in the oral cavity.<unk>  is a malignant growth that affects any part of the oral cavity, including the lips, gums, tongue, inside lining of the cheeks, roof of the mouth and floor of the mouth. It may arise as a primary lesion originating in any of the tissues in the mouth, by metastasis from a distant site of origin, or by extension from a neighboring anatomic structure, such as the nasal cavity. Alternatively, the<unk> s may originate in any of the tissues of the mouth, and may be of varied histologic types.
Oral cancer
Skin cancer
Head and neck cancer
Ear cancer
Oral ulcer
Laryngeal cancer
Tongue cancer
Oral complications of cancer treatment