鼻咽癌是我国最常见的恶性肿瘤之一,尤其在华南地区占男性恶性肿瘤的首位。根据国外资料,本病在国外发病率仅占全身恶性肿瘤的0.5—2.4％,并从比例上来说,亦以我国人为多。发病年龄多在中壮年,由于鼻咽癌生长部位隐蔽,早期不易发现,往往至晚期才诊断出来,此时多以其恶性程度高易 Nasopharyngeal carcinoma (NPC) is one of the most common malignancies in China, especially in southern China, accounting for the first place in male malignancy. According to foreign data, the incidence of this disease in foreign countries only accounts for 0.5 to 2.4% of all malignant tumors in the whole body, and in terms of proportion, it is also more common in China. The age of onset is mostly in the mid-advanced years, because the growth site of nasopharyngeal carcinoma is hidden, it is not easy to find in early stage, and it is often diagnosed until late stage. At this time, the degree of malignancy is often high.