Membranous aplasia cutis
Encyclopedia
Membranous aplasia cutis is a cutaneous condition, a type of aplasia cutis congenita
Aplasia cutis congenita
Aplasia cutis congenita is the most common congenital cicatricial alopecia, and is a congenital focal absence of epidermis with or without evidence of other layers of the skin....

, which can be seen along the embryonic fusion lines of the face.
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