<unk>  is a type of Calcinosis cutis. It's a cutaneous condition characterized by calcification of the skin resulting from the deposition of calcium and phosphorus, occurring most frequently as one or a few skin lesions on the scalp or face of children. Lesions may also appear on the ear and eyelid.
Subepidermal calcified nodule
Multiple minute digitate hyperkeratosis
Keratin pearl
Punctate epithelial erosions
Pseudopolyps
Perifollicular mucinosis
Hyperkeratinization
Linear and whorled nevoid hypermelanosis