自1989年以来,遇到下唇血管角安瘤4例,其中男3例,女1例,年龄34～72岁。发病时间为1个月至2年。发生部位:下唇唇红粘膜或与皮肤交界处,正中或偏向一侧。瘤体直径0.5cm～4.0 cm,瘤体边界清或不甚清,质地多较硬,表面不光滑,凹凸 Since 1989, there have been 4 cases of anomalies of the lower lip blood vessels, including 3 males and 1 female, aged 34-72 years old. The onset time is from 1 month to 2 years. Occurrence site: The lower lip and the red mucosa or the junction with the skin, centered or biased to one side. The diameter of the tumor is 0.5cm to 4.0cm. The boundary of the tumor is clear or not clear. The texture is hard and the surface is not smooth.