Association of hidradenitis suppurativa disease severity with increased risk for systemic comorbidities

DEAR EDITOR, I read with interest the recent report by Haus et al. 1 about a patient who developed two lesions of lymphomatoid papulosis (LyP) on the red parts of a tattoo. However, their report deserves a few comments. Many reported pseudolymphomas on tattoos involve T cells or both T and B cells, and are not attributed 'mainly' to B cells, as described in the manuscript. 2,3 To date, Sangueza et al. 4 in 1992 have published the only well-documented report of the malignant transformation of a T-cell pseudolymphoma into a monoclonal B-cell lymphoma related to a chronic tattoo reaction.