唇癌绝大多数为高分化鳞状细胞癌,以外生型较多,溃疡型及浸润型均较少。其病变90%以上在下唇。并多在外1/3唇红缘部,较少发生于口角及上唇。病变发展到晚期可累及全唇。此病的转移途径多为颌下及颏下淋巴结,发病年龄均在50岁以 The vast majority of lip cancer is well-differentiated squamous cell carcinoma, more than the outer type, ulcer type and infiltration are less. More than 90% of its lesions in the lower lip. And more than 1/3 lip red rim, less occurs in the mouth and upper lip. Lesions can affect the development of late full lip. Most of the pathways for the transfer of submandibular and submental lymph nodes, the onset of age at 50 years of age