Increased Risk of Squamous Cell Carcinoma of the Skin and Lymphoma Among 5,739 Patients with Bullous Pemphigoid: A Swedish Nationwide Cohort Study
DOI:
https://doi.org/10.2340/00015555-3622Keywords:
cancer, epidemiology, bullous pemphigoid, autoimmune diseases, malignancy, skin diseasesAbstract
Evidence about the association of bullous pemphigoid and the risk of cancer is conflicting. Patients diagnosed with bullous pemphigoid (n?=?5,739) between 2005 and 2016 were matched with a control cohort from the general population (n?=?17,168) to estimate their overall and specific risk of cancer. The risk of squamous cell cancer of the skin (cSCC) was increased in patients with bullous pemphigoid (hazard ratio (HR) 1.3; 95% confidence interval (CI) 1.1?1.6). The risk of lymphoma within one year after bullous pemphigoid diagnosis was also increased (HR 3.1; 95% CI 1.3?7.6). While overall cancer risk prior to diagnosis of bullous pemphigoid was similar in cases and controls (prevalence odds ratio (POR) 1.0; 95% CI 0.9?1.0), the risk of male genital cancer within one year prior to diagnosis of bullous pemphigoid was lower in cases (POR 0.4; 95% CI 0.2?0.8). Clinicians must be aware of the increased risk of cSCC and lym?phoma in patients with bullous pemphigoid.Downloads
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Copyright (c) 2020 Zeyad Albadri, Kristofer Thorslund, Henrike Häbel, Oliver Seifert, Carina Grönhagen
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