Editing Psoriasis (section)

==== Guttate psoriasis ====
[[File:Psoriasis en gouttes enfant 2.jpg|thumbnail|Example of [[guttate psoriasis]]]]
[[Guttate psoriasis]] is an inflammatory condition characterized by numerous small, scaly, red or pink, droplet-like lesions (papules). These numerous papules appear over large areas of the body, primarily the [[Torso|trunk]], limbs, and scalp, but typically spare the palms and soles. Guttate psoriasis is often triggered by a [[Group A beta-hemolytic streptococcus|streptococcal]] infection ([[Pharynx|oropharyngeal]] or perianal) and typically occurs 1–3 weeks post-infection. [[Guttate psoriasis]] is most commonly seen in children and young adults and diagnosis is typically made based on history and clinical exam findings.<ref name=Saleh22>{{cite book |vauthors=Saleh D, Tanner LS |chapter=Guttate Psoriasis |date=August 2022 |title=((StatPearls [Internet])) |location=Treasure Island (FL) |publisher=StatPearls Publishing |pmid=29494104}}</ref> Skin [[biopsy]] can also be performed which typically shows a psoriasiform reaction pattern characterized by epidermal [[hyperplasia]] with elongation of the [[Rete pegs|rete ridges]].<ref name=Saleh22/>

There is no firm evidence regarding the best management for guttate psoriasis; however, first-line [[therapy]] for mild guttate psoriasis typically includes topical corticosteroids.<ref name=Saleh22/><ref>{{cite journal |vauthors=Chalmers RJ, O'Sullivan T, Owen CM, Griffiths CE |title=A systematic review of treatments for guttate psoriasis |journal=Br J Dermatol |date=2001 |volume=145 |issue=6 |pages=891–4 |doi= 10.1046/j.1365-2133.2001.04505.x |pmid=11899141|s2cid=27381477 |doi-access=free }}</ref> [[Light therapy|Phototherapy]] can be used for moderate or severe guttate psoriasis. Biologic treatments have not been well studied in the treatment of guttate psoriasis.<ref name=Saleh22/>

Guttate psoriasis has a better [[prognosis]] than plaque psoriasis and typically resolves within 1–3 weeks; however, up to 40% of patients with guttate psoriasis eventually convert to plaque psoriasis.<ref name=Saleh22/><ref name="Weigle2013">{{cite journal | vauthors = Weigle N, McBane S | title = Psoriasis | journal = American Family Physician | volume = 87 | issue = 9 | pages = 626–33 | date = May 2013 | pmid = 23668525 | url = http://www.aafp.org/afp/2013/0501/p626.html | archive-url = https://web.archive.org/web/20150215233455/http://www.aafp.org/afp/2013/0501/p626.html | url-status = live | archive-date = 15 February 2015 }}</ref>