Head and neck cancers generally refer to cancers that start in the head and neck area, excluding brain cancer and thyroid cancer but including the lips, tongue, oral cavity, salivary glands (parotid glands), tonsils, throat/ larynx, nasopharynx, nasal cavity, and the paranasal sinuses.
According to the 2013 statistical report by the Hong Kong Cancer Registry, there are about 1,100 new cases of gastric cancer every year. Men are at a higher risk than women, accounting for about 60% of the total cases.
Liver cancer is a common fatal disease. According to the statistical figures published by the Hong Kong Cancer Registry in 2013, liver cancer is the third-leading cause of death from cancer in Hong Kong, after lung cancer and colorectal cancer.
Lung cancer is one of the top three most common cancers in Hong Kong with a very high death rate. Early lung cancer has no obvious symptoms so many cases are diagnosed at advanced stages. Treatments become more difficult when the cancer has metastasized.