<unk>  is a cutaneous condition characterized by a hyperkeratotic nodule or plaque involving the extremities. It is considered of eccrine origin.
Syringofibroadenoma
Mammary-type myofibroblastoma
Carcinoma ex pleomorphic adenoma
Trichoadenoma
Basal cell adenoma
Folliculosebaceous cystic hamartoma
Fibroadenoma
Adenoacanthoma