Clinical and Pathological Features of Persistent Decorative Tattoo Reactions.

Area of Science:

• Dermatology
• Pathology
• Immunohistochemistry

Background:

• Decorative tattoos are increasingly common globally.
• Persistent, non-infectious medical complications associated with tattoos are rising.
• Clinical and histopathological characterization of these reactions is challenging.

Purpose of the Study:

• To report the clinical and histopathological findings of persistent reactions to decorative tattoos.
• To investigate potential associations between histopathological patterns and ink colors.
• To include immunohistochemical findings in the analysis.

Main Methods:

• Retrospective analysis of 30 biopsies from 28 patients with persistent tattoo reactions.
• Detailed clinical assessment of tattoo complications.
• Histopathological examination of biopsy specimens.
• Immunohistochemical analysis of selected cases.

Main Results:

• Common histopathological findings included lichenoid and granulomatous dermatitis.
• Overlapping patterns were frequently observed.
• Clinical and pathological findings were difficult to correlate with specific ink colors.
• Immunohistochemical findings provided additional insights into the inflammatory processes.

Conclusions:

• Persistent tattoo reactions present diverse and overlapping histopathological features.
• Lichenoid and granulomatous patterns are most frequently encountered.
• Attributing reactions to specific ink colors based on histology is often not feasible.
• Further research, including immunohistochemistry, is needed to understand these complications better.