TATTOO PIGMENTS AND LYMPHADENOPATHIES: FROM LOCAL TO SYSTEMIC
Tattoo pigment does not remain isolated in the skin. As a foreign material, it can trigger an immune response—most often localized, involving regional lymph nodes, but in some cases extending beyond the skin and becoming systemic, including presentations in sarcoidosis. In a review article (Eur J Microbiol Immunol 2026) that included 33 publications, the authors traced clinical scenarios, diagnostic approaches, histopathologic findings, and outcomes of these conditions. We break down why tattoo pigments can mimic malignancy, what forms of lymphadenopathy are described in the literature, and which questions remain unanswered. Details — in our editorial note.