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Scale forms on the skin surface in various disease settings, and is the result of abnormal desquamation. In pathologic desquamation, such as that seen in X-linked ichthyosis, the stratum corneum becomes thicker (hyperkeratosis), imparting a "dry" or scaly appearance to the skin, and instead of detaching as single cells, corneocytes are shed in clusters, which forms visible scales. [2]
Psoriasis. What it looks like: Psoriasis causes patches of thickened skin, most often with silver, scaly flakes.It’s usually found around the elbows, feet, knees, palms, and you can even have ...
Xeroderma, xerosis or xerosis cutis, or simply dry skin, is a skin condition characterized by excessively dry skin. [2] The term derives from Greek ξηρός (xeros) 'dry' and δέρμα (derma) 'skin'. In most cases, dry skin can safely be treated with moisturizers (also called emollients).
The skin weighs an average of four kilograms, covers an area of two square metres, and is made of three distinct layers: the epidermis, dermis, and subcutaneous tissue. [1] The two main types of human skin are: glabrous skin, the hairless skin on the palms and soles (also referred to as the "palmoplantar" surfaces), and hair-bearing skin. [3]
thickening of the skin (lichenification) where the AD has been present for a long time. [2] Eczema often starts on the cheeks and outer limbs and body in infants and frequently settles in the folds of the skin such as behind the knees, folds of the elbows, around the neck, wrists and under the buttock folds as the child grows. [13]
Atopic dermatitis (or eczema) is the most common inflammatory skin disease. Skin may slough in a peeling fashion. Contact dermatitis arises from contact with a skin irritant. The ensuing irritation can cause sores and skin sloughing. and Seborrheic dermatitis which is associated with skin shedding through dandruff.
Women of a certain age swear by this crepe-correcting lotion, with one writing, "I'm 70 years old, so flappy, lumpy and crepey skin under the upper arms is to be expected. I have not worn anything ...
However, this redness does not appear on darker skin and dermatitis can appear darker brown or purple in color. [19] Typical affected skin areas include the folds of the arms, the back of the knees, wrists, face and hands. Perioral dermatitis refers to a red bumpy rash around the mouth. [20]