It is sometimes referred to as Cantonese cancer (廣東癌) because it occurs in about 25 cases per 100,000 people in this region, 25 times higher than the rest of the world. It is also quite common in Taiwan. This could be due to the Southeast Asian diet or that Southern Chinese people such as the Cantonese and Taiwanese have Southeast Asian ancestry (such as the proto-Kra-Dai speaking peoples and proto-Austronesian peoples) via ancient intermarriages with Han Chinese from Northeast Asia which led to the transmission of a genetic risk for nasopharynx cancer. While NPC is seen primarily in middle-aged persons in Asia, a high proportion of African cases appear in children. The cause of increased risk for NPC in these endemic regions is not clear. In low-risk populations, such as in the United States, a bimodal peak is observed. The first peak occurs in late adolescence/early adulthood (ages 15–24 years), followed by a second peak later in life (ages 65–79 years). See also
Endoscopic nasopharyngectomy
Lymphoepithelioma-like carcinoma

References
External links

Cancer Management Handbook: Head and Neck Tumors
Clinically reviewed nasopharyngeal cancer information for patients from Cancer Research UK
Society and culture
Economics
In 2015 it cost about US$14,100 per year. One article calculated this to be about $400,000 to $500,000 per quality-adjusted life year (QALY), which did not meet "generally accepted" cost-benefit thresholds. The authors calculated that an annual cost of $4,500 would meet an acceptable $100,000 per QALY standard. On October 26, 2018 the maker of the drug, Amgen, announced a 60% cut in price and the drug now costs $5,850 per year. References
External links
"Evolocumab". Drug Information Portal. U.S. National Library of Medicine.