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Prevalence and presumptive triggers of localized bullous pemphigoid
Author(s) -
Ständer Sascha,
Kasperkiewicz Michael,
Thaçi Diamant,
Schmidt Enno,
Zillikens Detlef,
Vorobyev Artem,
Ludwig Ralf J.
Publication year - 2021
Publication title -
the journal of dermatology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 65
eISSN - 1346-8138
pISSN - 0385-2407
DOI - 10.1111/1346-8138.15912
Subject(s) - bullous pemphigoid , medicine , cohort , differential diagnosis , dermatology , disease , autoantibody , pemphigoid , pathology , immunology , antibody
Bullous pemphigoid (BP) is an autoimmune skin disease, caused by autoantibodies to BP180 and/or BP230. While both these autoantigens are expressed in the entire skin, only some parts of the body become affected. Rare clinical observations indicate that BP may also manifest locally, usually following exposure to triggers. Here, we evaluated the occurrence and potential triggers of localized BP (LBP) in a cohort of 285 BP patients. Medical records of all BP patients hospitalized between 2009 and 2019 were reviewed. In 7/285 BP patients, a localized variant was identified. In 5/7 LBP patients, the disease remained local, while in 2/7 patients, an initial LBP subsequently spread. All cases were preceded by presumptive triggers, including previously described triggers and bacterial infections. Overall, LBP is rare. LBP, however, might be underdiagnosed and should thus be considered in the differential diagnosis, particularly when trigger factors preceded.