Large Squamous Cell Carcinoma Lung

Basal cell carcinoma (BCC) is the most common form of cancer in humans; it is also the most common form of skin cancer. Its incidence rises markedly in individuals over 40 years of age. Recently, it has become more common in younger persons, probably due to increased exposure to ultraviolet light.

BCC tends to grow slowly and rarely metastasizes, but—since 85 percent of basal cell carcinomas occur on the head and neck—localized invasion and destruction of surrounding tissues (bone and brain, for example) can cause significant disability.