Pruigo

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Last update: Sunday, 28 May 2023 at 4.12 pm.

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Prurigo nodularis

Pruriga are strongly itchy diseases, mainly chronic, in which hard papules ("seropapules“) are formed, caused by edemaem corium – so-called pruriginous nodules. With longer duration, lichenification of the skin occur.

Prurigo simplex acute (Strophulus infantum)[edit | edit source]

Occasional sudden eruptions on the trunk and limbs, nodules the size of a pinhead to a lens, a blister form on the top excoriation → crust of dried blood. sometimes they impetiginize. After healing, minor de- and hyperpigmentation occurs. Sometimes it appears as a food allergy, other times after a flea bite. Varicella (doesn't itch) and scabies need to be differentiated in terms of differential diagnosis .

Prurigo simplex subacute (Prurigo temporanea, adultorum)[edit | edit source]

Similar, in adults, especially middle-aged women, predilection on extensor surfaces. For many months or years, small seropapules appear, persistently itch, soon scratch off and a (de)pigmented spot develops. The causes can be different, sometimes during pregnancy (prurigo gestationis), sometimes with GIT disorders liver diseases, allergies.

Prurigo nodularis Hyde[edit | edit source]

Hard, warty-looking papules persisting for years on the limbs, persistently itchy, cause unknown.

For more information see Lichen simplex chronicus.

Links[edit | edit source]

Source[edit | edit source]

BENEŠ, Jiří. Study materials [online]. ©2007. [cit. 2010]. <http://jirben2.chytrak.cz/materialy/dermatovenerologie.doc>.