<unk>  is a benign apocrine tumor. It can arise with nevus sebaceus.
Syringocystadenoma papilliferum
Adenoma sebaceum
Steatocystoma multiplex
Solitary trichoepithelioma
Cutaneous columnar cyst
Generalized trichoepithelioma
Nevus sebaceous
Papillary hidradenoma