Allergische Sp�ttypreaktion auf roten Azofarbstoff in T�towierungen

Abstract

Allergic reactions in tattoos are comparatively rare. In most cases the reactions are caused by different red pigments. While in the past these reactions have been ascribed to mercury salts (cinnebar) and cadmium sulphide, now synthetic inorganic azo dyes have also been found to be responsible for such reactions. A 42-year-old man presented with an allergic reaction in the red parts of his tattoos. Histologically a chronic granulomatous, partly fibrous inflammation with transfollicular elimination of pigment granules was found. Spontaneous regression in a part of the inflammatory reaction was observed, simultaneously with depigmentation and scarring of the overlying skin. The pigment used for tattooing was found to be an aromatic azo derivative. In addition to a positive cutaneous reaction to the dye, the patient also showed a positive patch test to Napthol AS, used for the coupling of different dyes in the textile industry.

Treatment modalities for allergic reactions in pigmented tattoos

“…Classical tattoo dyes include Indian ink and heavy metal salts, such as mercury, cadmium and chromium. Today, in addition to the inorganic pigments titanium dioxide and ferric oxide hydrate, mainly synthetic organic dyes such as azopigments, chinacridone and phthalocyanine copper complexes are used [6, 7, 8]. In a recently published analysis, aluminum and silicon were frequently found in red tattoo dyes [9].…”

Clothing dermatitis from Naphthol AS

“…Naphthol AS, though not tested alone, has been reported as an occupational allergen in combination with Diazo Component 51 (2), and as a cross‐ or associated sensitizer with Pigment Red 23 in tattoos (3). Naphthol AS itself was first reported as a cause of pigmented contact dermatitis in textile workers in Mexico in the 1970s (4).…”

Leitungsanästhesien bei Tätowierungen

“…Nach wie vor sind dekorative temporäre und permanente Schmucktätowierungen bei Jugendlichen sowie jungen Erwachsenen und trotz der möglichen Komplikationen "trendy" [1,3,6]. Kohortenuntersuchungen haben ergeben, dass in der westlichen Hemisphäre 3-5 der Bevölkerung mindestens eine Schmucktätowierung tragen [4].…”