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Prurigo nodularis (PN), also known as nodular prurigo, is a skin disorder characterized by pruritic , nodular lesions, which commonly appear on the trunk, arms and legs. [1] Patients often present with multiple excoriated nodules caused by chronic scratching.
Prurigo is a reactive skin condition distinguished by numerous, isolated itchy papules. [1] The word "prurigo" comes from the Latin word pruire, which meaning itching. Ferdinand von Hebra coined the term "prurigo" in Vienna in 1850 to describe papules and nodules that had severe pruritus . [ 2 ]
The itchy eruption lasts an average of 10–12 months. It is characterized by papules and papulovesicles with excoriations occurring on the chest, back, lower sternum, arms, and thighs. [4] The papules are most commonly found on the mid chest. Sometimes the features of Grover's are found in people who do not itch or have a conspicuous rash.
Acariasis is a term for a rash, caused by mites, sometimes with a papillae (pruritic dermatitis) or papule (papular urticaria), and usually accompanied by a hive and severe itching sensations. An example of such an infection is scabies or gamasoidosis. [citation needed]
Gamasoidosis, also known as dermanyssosis, is a frequently unrecognized form of zoonotic dermatitis, following human infestation with avian mites of the genera Dermanyssus or Ornithonyssus. It is characterized by pruritic erythematous papules, macules and urticaria, with itching and irritation resulting from the saliva the mites secrete while ...
Dermatoses of pregnancy are the inflammatory skin diseases that are specific to women while they are pregnant. [1] While some use the term 'polymorphic eruption of pregnancy' to cover these, [2] this term is a synonym used in the UK for Pruritic urticarial papules and plaques of pregnancy, [3] which is the commonest of these skin conditions.
Immunosuppressants have seen use at low doses alongside systemic steroids and phototherapy for chronic symptoms of senile pruritus or dermatitis. Senile pruritus could have connections to the loss of tolerance for antigens on the skin that result from aging skin, which can potentially lead to other autoimmune disorders like bullous pemphigoid. [14]
[19] [20] Clinically, the diagnosis of any particular skin condition is made by gathering pertinent information regarding the presenting skin lesion(s), including the location (such as arms, head, legs), symptoms (pruritus, pain), duration (acute or chronic), arrangement (solitary, generalized, annular, linear), morphology (macules, papules ...