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Pityriasis alba is a skin condition, a type of dermatitis, [1] commonly seen in children and young adults as dry, fine-scaled, pale patches on the face. It is self-limiting and usually only requires use of moisturizer creams .
Vitiligo (/ ˌ v ɪ t ɪ ˈ l aɪ ɡ oʊ /, vit-il-eye-goh) is a chronic autoimmune disorder that causes patches of skin to lose pigment or color. [1] The cause of vitiligo is unknown, but it may be related to immune system changes, genetic factors, stress, or sun exposure.
Hypopigmentation can be caused by hereditary conditions such as vitiligo, melasma, pityriasis versicolor, pityriasis alba, albinism, and fungal infections. [ 4 ] Hyperpigmentation results from an increase in melanin synthesis, which is mostly brought on by sun exposure, dermatological disorders, hormones, aging, genetic factors, skin injuries ...
Pityriasis alba; Poikiloderma of Civatte; Poikiloderma vasculare atrophicans; Postinflammatory hyperpigmentation (postinflammatory hypermelanosis) Postinflammatory hypopigmentation; Progressive macular hypomelanosis; Quadrichrome vitiligo; Reticular pigmented anomaly of the flexures (dark dot disease, Dowling–Degos' disease)
Severe atopic dermatitis has been linked to depigmentation resembling vitiligo. [3] With a prevalence of up to 59%, lichen striatus is another frequent cause of postinflammatory hypopigmentation. [4] Within two years, the dermatosis spontaneously heals, leaving temporary hypopigmentation, particularly in those with darker skin tones.
Pityriasis versicolor: A topical ointment, such as selenium sulfide 2.5% or imidazoles. Can also use oral medications, such as oral imidazoles or triazoles. Vitiligo: Topical steroids, including calcineurin inhibitors. Patients can also have transplants if they are stable or a depigmentation with topical MBEH if the patient has widespread ...
The pigment loss can be partial (injury to the skin) or complete (caused by vitiligo). It can be temporary (from tinea versicolor) or permanent (from albinism). [1] Most commonly, depigmentation of the skin is linked to people born with vitiligo, which produces differing areas of light and dark skin. Monobenzone also causes skin depigmentation.
Some genetic conditions that result in a "leucistic" appearance include piebaldism, Waardenburg syndrome, vitiligo, Chédiak–Higashi syndrome, flavism, isabellinism, xanthochromism, axanthism, amelanism, and melanophilin mutations. Pale patches of skin, feathers, or fur (often referred to as "depigmentation") can also result from injury.