<unk>  is a neoplasm of the adnexa of the skin. Its appearance is similar to basal cell carcinoma. One form has been mapped to chromosome 9p21.
Trichoepithelioma
Generalized trichoepithelioma
Solitary trichoepithelioma
Angiokeratoma
Desmoplastic trichoepithelioma
Lymphoepithelioma
Medulloepithelioma
Nevus sebaceous