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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]
Keratolysis exfoliativa (also known as"lamellar dyshidrosis", [1] "recurrent focal palmar peeling", [2] "recurrent palmar peeling" [1]: 212 [2]) is a sometimes harmless, sometimes painful skin condition that can affect the focal surface of the fingers and/or the palm or soles of the feet.
Desquamation and formation of the cornified envelope are both required for the maintenance of skin homeostasis. A failure to correctly regulate these processes leads to skin disorders developing. [4] Cells of the stratum corneum contain a dense network of keratin, a protein that helps keep the skin hydrated by preventing water evaporation.
Chemotherapy-induced acral erythema, also known as palmar-plantar erythrodysesthesia or hand-foot syndrome is reddening, swelling, numbness and desquamation (skin sloughing or peeling) on palms of the hands and soles of the feet (and, occasionally, on the knees, elbows, and elsewhere) that can occur after chemotherapy in patients with cancer.
Peeling skin syndrome in the legs and feet. Peeling skin syndrome (also known as acral peeling skin syndrome, continual peeling skin syndrome, familial continual skin peeling, idiopathic deciduous skin, and keratolysis exfoliativa congenita [1]) is an autosomal recessive disorder characterized by lifelong peeling of the stratum corneum, and may be associated with pruritus, short stature, and ...
Individuals prone to dry skin or skin sloughing may use a number of methods to prevent the condition in the first place. Decreasing exposure to harsh environments can decrease dry, peeling skin. Avoid extreme heat: Showering or bathing should be done with warm water as opposed to hot. Additionally, heaters and fires produce dry heat.
Focal acral hyperkeratosis (also known as "Acrokeratoelastoidosis lichenoides,") is a late-onset keratoderma, inherited as an autosomal dominant condition, characterized by oval or polygonal crateriform papules developing along the border of the hands, feet, and wrists.
Besides peripheral neuropathy (presenting as paresthesia or itching, burning or pain) and discoloration, swelling and desquamation may occur. Since mercury blocks the degradation pathway of catecholamines, epinephrine excess causes profuse sweating (), tachycardia, salivation and elevated blood pressure.