Little is known about the causes of<unk> s, although some evidence has shown that ultraviolet light, radiation, and genes may be causation factors. A genetic role might also be plausible, according to some studies. In several cases, patients developed a<unk>  after immunosuppression.
Microcystic adnexal carcinoma
Eccrine carcinoma
Hidradenocarcinoma
Apocrine gland carcinoma
Tubular carcinoma
Trichoadenoma
Adenoacanthoma
Papillary serous cystadenocarcinoma