Skin fissure

Eczematous fissures on skin of inner surface of finger
Schematic image comparing a skin fissure to an erosion and an ulcer.
The surface of the knuckles of a hand with xeroderma, showing skin cracking (generalized skin fissuring)

A skin fissure is a cutaneous condition in which there is a linear cleavage of skin, sometimes defined as extending into the dermis. It is smaller than a skin laceration.

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