Features of tattoo‐associated cutaneous lymphoid hyperplasia on reflectance confocal microscopy and line‐field confocal optical coherence tomography

Author:

Ariasi C.1ORCID,Licata G.2ORCID,Perazzolli G.1,Tonon F.1ORCID,Venturini M.1,Calzavara‐Pinton P. G.1,Soglia S.1

Affiliation:

1. Department of Dermatology, ASST Spedali Civili di Brescia University of Brescia Brescia Italy

2. Department of Dermatology Unit San Antonio Abate Hospital Trapani Italy

Abstract

AbstractThe popularity of tattoos has led to an increase in associated skin reactions, including complications such as infection, allergic reactions and rare conditions such as tattoo‐induced cutaneous lymphoid hyperplasia (CLH). CLH is a benign lymphoproliferative reaction with clinical features resembling malignant cutaneous lymphomas. Non‐invasive diagnostic tools like reflectance confocal microscopy (RCM) and the new line‐field confocal optical coherence tomography (LC‐OCT) are being studied in dermatology better to understand the morphological patterns of many dermatological diseases. Between September 2021 and May 2023, patients with suspicious lesions for tattoo‐related CLH were analysed using RCM and LC‐OCT before confirming the diagnosis of CLH through skin biopsy and histopathological examination. The study included five cases of CLH. It focused on the analysis of high‐quality LC‐OCT images/videos and RCM images to investigate the features of CLH in tattooed individuals. Most (80%) cases exhibited a mixed T and B lymphocyte infiltration subtype, while 20% showed a predominant T infiltration subtype. RCM and LC‐OCT revealed characteristic features, including architectural disarray, fibrosis, lymphoid infiltrates, and pigment deposits in the epidermis and dermis. Non‐invasive tools such as RCM and LC‐OCT are valuable in diagnosing tattoo‐related CLH. While skin biopsy remains the current standard for diagnosis, RCM and LC‐OCT can serve as helpful adjuncts in identifying the most representative area for biopsy. They may potentially become alternative diagnostic options in the future, offering benefits in terms of cost, diagnostic efficiency, aesthetics and patient satisfaction as the prevalence of tattoo‐related adverse reactions continues to rise.

Publisher

Wiley

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