Pemphigus and hematologic malignancies: A population-based study of 11,859 patients

•Hematologic malignancies have been reported sporadically in patients with pemphigus.•In the current study, significant associations were observed between pemphigus and chronic leukemia, multiple myeloma, and non-Hodgkin lymphoma.•Further research is needed to confirm these findings in other cohorts.

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