Editing Psoriasis (section)

==== Mouth ====
Psoriasis in the mouth is very rare, in contrast to [[lichen planus]], another common papulosquamous disorder that commonly involves both the skin and mouth.<ref name="Yesudian2012">{{cite journal | vauthors = Yesudian PD, Chalmers RJ, Warren RB, Griffiths CE | title = In search of oral psoriasis | journal = Archives of Dermatological Research | volume = 304 | issue = 1 | pages = 1–5 | date = January 2012 | pmid = 21927905 | doi = 10.1007/s00403-011-1175-3 | s2cid = 33434341 }}</ref> When psoriasis involves the oral [[Mucous membrane|mucosa]] (the lining of the mouth), it may be asymptomatic,<ref name="Yesudian2012"/> but it may appear as white or grey-yellow plaques.<ref name="Yesudian2012"/> [[Fissured tongue]] is the most common finding in those with oral psoriasis and has been reported to occur in 6.5–20% of people with psoriasis affecting the skin. The microscopic appearance of oral mucosa affected by [[geographic tongue]] (migratory stomatitis) is very similar to the appearance of psoriasis.<ref>{{cite book | vauthors = Greenberg MS, Glick M, Ship JA | title = Burket's oral medicine | year = 2008 | publisher = BC Decker | location = Hamilton, Ont | isbn = 978-1-55009-345-2 | pages = 103–4 | edition = 11th }}</ref> A recent study found an association between the two conditions, and it suggests that geographic tongue might be a predictor for psoriasis.<ref>{{Cite journal |last1=González-Álvarez |first1=Laura |last2=García-Martín |first2=José M. |last3=García-Pola |first3=María José |date=May 2019 |title=Association between geographic tongue and psoriasis: A systematic review and meta-analyses |url=https://pubmed.ncbi.nlm.nih.gov/30739339/ |journal=Journal of Oral Pathology & Medicine|volume=48 |issue=5 |pages=365–372 |doi=10.1111/jop.12840 |issn=1600-0714 |pmid=30739339}}</ref>