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作者指出,在美国唇癌占全身恶性肿瘤的2.2%,占口腔恶性肿瘤的15%。唇癌至少40%起源于白斑。早期病变沿着唇红或皮肤表面扩散,晚期可侵犯肌层及发生淋巴结转移。上唇癌转移率高达50%,下唇癌转移率仅15%。作者于1964—1974年共收治唇癌37例,均有吸烟史,其中2/3为户外职业。病变位于下唇者27例,上唇1例,其余不详。本组中,单纯手术者31例,放疗4例,手术合并放疗1例。结果:23例存活2年,
The authors pointed out that in the United States, lip cancer accounts for 2.2% of all malignant tumors and 15% of oral malignant tumors. At least 40% of lip cancer originates from white spot. Early lesions spread along the vermilion or the skin surface and may invade the myometrium and lymph node metastases in later stages. The upper lip cancer metastasis rate is as high as 50%, and the lower lip cancer metastasis rate is only 15%. The authors treated a total of 37 cases of lip cancer from 1964 to 1974. Both had a history of smoking, and 2/3 of them were outdoor occupations. The lesions were located in the lower lip in 27 cases and in the upper lip in 1. The rest was unknown. In this group, there were only 31 cases of surgery, 4 cases of radiotherapy, and 1 case of surgery combined with radiotherapy. Results: 23 cases survived for 2 years,