Description Acanthosis nigricans is a skin ailment that is characterized by development of velvety, black patches on the skin. However, they can also appear on the palms, face, and the …
Description Nummular dermatitis is a type of persistent dermatitis, commonly referred to as nummular eczematous dermatitis or discoid eczema. It usually manifests clearly as delineated coin-shaped spots of erythema or …