Immunohistochemical staining revealed absent or low expression of FASN (immunoreactivity score of <3) in normal nasopharyngeal epithelium (Figure 4A, N1), and 16 of 38 (42%) NPC tumors in which LMP1 expression was barely detectable (Figure 4A, representative NPC: T4). The gene discussed is FASN; the disease is nasopharyngeal carcinoma.