Tannenbaum R, et al. - In this cross-sectional cohort analysis, standardized electronic health record information of the IBM Explorys database for 55 million patients from 27 integrated health systems across the US with active status from between July 16, 2013 and July 16, 2018 was used to examine the relationship between hidradenitis suppurativa (HS) and lymphoma. Investigators observed the overall lymphoma prevalence among subjects with and without HS, and within demographic subgroups using a logistic regression model controlling for age and sex.