Common head and neck cancer

Head and neck cancer is the most common nasopharyngeal carcinoma,Especially in the South China coastal areas, its incidence can be as high as 30 ~ 50/10 million. Nasopharyngeal cancer mortality about all cancer mortality 2.81%, ranking eighth in the high age 40 to 60 years old, male-common. Followed by thyroid cancer, the incidence rate of about 3.5/10 million, occurs in young and middle-aged women, high incidence age of 35 ~ 55 years. The third one is salivary gland tumors (including parotid, submandibular gland, sublingual gland, small salivary gland), the incidence rate of about 3 / 100,000, of which 80 percent occurred in the parotid gland, 10% in leading the gland, 1 percent in the sublingual gland, the rest distributed in the minor salivary gland. A considerable proportion of male and female incidence, occur in the elderly. Head and neck cancer are common in the oral cavity cancer (including tongue, buccal mucosa, gingival, floor of mouth, hard palate, soft palate, tonsils, etc.), laryngeal cancer, malignant lymphoma, primary tumors metastatic neck unknown cancer, soft tissue sarcoma head and neck, scalp and head and neck cancer and skin cancer and malignant melanoma. In short, head and neck cancer accounts for about systemic cancer five percent, on the whole, due to the different living habits, male incidence than women, the high incidence of age often from 30 to 40 years old, 40 to 60 years of age showed a peak in 60 years and then gradually decline. According to different geographical distribution in the South China good nasopharyngeal cancer, thyroid cancer and malignant lymphoma and skin cancer, and in northern China, and good oral cancer and the larynx.