basal cell melanoma

例句：

1. 1. This type of cancer is particularly common in people over 50 years old.
   这种癌症特别常见于50岁以上的人。
2. 2. The patient was diagnosed with basal cell melanoma and underwent surgery to remove the tumor.
   患者被诊断出患有基底细胞黑色素瘤，并接受了手术以切除肿瘤。
3. 3.Researchers are studying the genetic mutations that may contribute to the development of basal cell melanoma.
   研究人员正在研究可能促成基底细胞黑色素瘤发展的遗传突变。