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Psoriasis

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 What Is Psoriasis?

Psoriasis is a chronic, autommune relapsing skin disorder characterized by scaling, erythema (redness), and less commonly, pustulation.1 

The body surface area affected and the degree to which psoriasis is a problem varies considerably among patients and over time.2 Often there are additional manifestations in the nails and in joints.3

Q: Are there different forms of psoriasis?

A: There are five forms of psoriasis. The lesions in all forms are itchy and red but vary in appearance and severity. Plaque psoriasis is the most common form observed in more than 80% of patients. Atypical forms include guttate, inverse, pustular, and erythrodermic psoriasis.4

  • Plaque psoriasis features thickened or raised red areas that have a distinct edge and are covered with silvery white buildup of flaky skin typically on elbows, knees, scalp and buttocks.
  • Gutate psoriasis appears as small, flat red patches with shiny buildup that are not usually painful, just itchy. There may be a few or many patches and they can group together.
  • Inverse psoriasis affects folds of skin, armpits and the groin area. Lesions are deep red with shiny buildup. It can be a thin red area along a crease line or involve, for example, the whole armpit.
  • Pustular psoriasis features an itchy, red base followed by blisters of white, non-infectious pus that appears glossy after a day or two and then sloughs in cycles. These areas may be limited to certain areas such as the hands and feet or be more widespread.
  • Erythrodermic psoriasis involves large areas of the body’s surface, inflaming normal skin and changing it into very red, raw looking flesh that is painful, swollen and itchy. This form requires extensive treatment, and complications can be life-threatening. Fortunately, this form of psoriasis is the least common.

Psoriasis in children has been reported to differ from that among adults being more frequently itchy and plaque lesions are relatively thinner, softer, and less scaly, face and flexural involvement is common and guttate type is the characteristic presentation.5

In children, psoriasis is a common skin disorder with about one third of all patients having onset of disease in the first or second decade of life. A chronic disfiguring skin disease, such as psoriasis, in childhood is likely to have profound emotional and psychological effects, and hence requires special attention.6

What Is Psoriasis In Celiac Disease and/or Gluten Sensitivity?


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  1. Addolorato G, Parente A, de Lorenzi G, et al. Rapid regression of psoriasis in a coeliac patient after gluten-free diet. A case report and review of the literature. Digestion. 2003;68(1):9-12. 

  2. Stern, R. S., Nijsten, T., Feldman, S. R., Margolis, D. J. and Rolstad, T.

    Psoriasis is common, carries a substantial burden even when not extensive, and is associated with widespread treatment dissatisfaction. J. Invest. Dermatol. Symp.. 2004 Mar;9(2):136-9.. 

  3. Weigle N, McBane S. Psoriasis. Am Fam Physician. 2013 May 1;87(9):626-33. 

  4. Weigle N, McBane S. Psoriasis. Am Fam Physician. 2013 May 1;87(9):626-33. 

  5. Dogra S, Kaur I. Childhood psoriasis. Indian J Dermatol Venereol Leprol. 2010 Jul-Aug;76(4):357-65. doi: 10.4103/0378-6323.66580. 

  6. Dogra S, Kaur I. Childhood psoriasis. Indian J Dermatol Venereol Leprol. 2010 Jul-Aug;76(4):357-65. doi: 10.4103/0378-6323.66580. 

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