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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).
[1] [2] [3] In the elderly, xerosis, is the most common cause for an itch due to the degradation of the skin barrier over time. [4] However, the cause of senile pruritus is not clearly known. [5] Diagnosis is based on an elimination criteria during a full body examination that can be done by either a dermatologist or non-dermatologist physician ...
Dryness, heat, cold, stress, and showering all exacerbate pruritus. Patients with this condition frequently have skin devoid of noticeable lesions. But in addition to xerosis, skin lesions like excoriation, crusts, impetigo, and prurigo nodularis may also develop as a result of repeated scratching. [4]
But when Ichthyosis vulgaris is typically in infancy signs like skin dryness (xerosis), skin lesions, keratosis pilaris (small skin bumps), thickened skin on the palms and soles (palmoplantar hyperlinearity), scaly skin (scaly dermatosis), and, in severe cases, red and inflamed skin (erythroderma) become apparent, usually by age 5.
Appearance of C. xerosis colonies on blood agar. Corynebacterium xerosis is a gram-positive, rod-shaped bacterium in the genus Corynebacterium.Although it is frequently a harmless commensal organism living on the skin and in the mucous membranes, C. xerosis is also a clinically relevant opportunistic pathogen that has been attributed to many different infections in animals and humans.
Lichen sclerosus (LS) is a chronic, inflammatory skin disease, of unknown cause, which can affect any body part of any person, but has a strong preference for the genitals (penis, vulva), and is also known as balanitis xerotica obliterans when it affects the penis. Lichen sclerosus is not contagious.
One series of 300 patients with Grover's disease reported an association with other coexisting dermatoses including atopic dermatitis, contact dermatitis, and xerosis cutis. [6] More recent reports have indicated a connection with the Pfizer vaccine for Covid-19 [ 7 ] and as a presenting symptom of SARS-CoV-2 infection itself. [ 8 ]
The loose skin is often most noticeable on the face, resulting in a prematurely aged appearance. The affected areas of skin may be thickened and dark. In addition, the joints may be loose (hypermobile) because of lax ligaments and tendons. When cutis laxa is severe, it can also affect the internal organs.