Other, less common variants of skin cancer include:
Kaposi Sarcoma - develops in the blood vessels of the skin and appears as reddish-purple patches on parts of skin that are heavily sun-exposed.
Merkel Cell Carcinoma - leads to the growth of firm, shiny nodules on sun-exposed skin and in hair follicles.
Sebaceous Gland Carcinoma - an aggressive cancer that results in hard, painless skin nodes, most often on the eyelids.