Plasmocitosis cutánea en un varón de raza blanca / Cutaneous Plasmacytosis in a White Man

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Máculas hipopigmentadas focales / Focal Hypopigmented Macules

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[Allergic contact dermatitis to temporary henna tattoos]. / Dermatitis de contacto alérgica a tatuajes temporales de henna.

INTRODUCTION: In the last years there have been increasing reports of adverse cutaneous reactions to temporary black henna tattoos. Black henna does not exist naturally, it is obtained from original henna after the addition of other compounds, among them paraphenylenediamine (PPD), that darken it and facilitate the process of tattoing. Paraphenylenediamine is an aromatic compound that presents cross reactions with other components that have a benzene ring in their molecular structure. Many of these products may be present in the daily life of any person. MATERIAL AND METHODS: We reviewed patients that have shown erythema, inflammation and/or vesiculation in a previously tattooed area. The patients have undergone a temporary tattoo in street stalls during the summer period (2004-2005). A total of five patients were included, there were four men and one woman with a mean age of 13 years (3-34) and a mean latency period of 9.4 days (5-14). Black ink and plastic stencils were used to perform the tattoo. None of the patients has had previous contact with hair dyes or tattoos and none of them referred a personal history of atopic dermatitis. Patch testing was carried out using the standard set of the Spanish Group for Research in Contact Dermatitis [GEIDC] (TRUE TEST, Pharmacia. Hillerod. Denmark), with readings at 48 and 96 hours. RESULTS: Sensitization to PPD is confirmed in three patients, one of them was also sensitized to formaldehyde. Hypopigmented scars persist in three patients. CONCLUSIONS: Black henna pseudotattoos are a source of sensitization to PPD with potential severe consequences in a medium to long term. Currently there is no specific legislation with respect to the practice of this type of tattoos in our country.

Dermatitis de contacto alérgica a tatuajes temporales de henna / Allergic contact dermatitis to temporary henna tattoos

Introducción. Las comunicaciones de reacciones cutáneas adversas a tatuajes temporales por henna negra son cada vez más frecuentes en los últimos años. La henna negra no existe de forma natural; se obtiene a partir de la henna original añadiéndole otros compuestos que la oscurecen y facilitan el proceso de tatuaje, entre ellos la parafenilendiamina (PPD). La PPD es un compuesto aromático que presenta reacciones cruzadas con otros componentes con anillo bencénico en su estructura molecular. Muchos de estos productos pueden estar presentes en la vida cotidiana de cualquier persona. Material y métodos. Realizamos una revisión de pacientes que presentaran un cuadro de eritema, inflamación y/o vesiculación en la zona tatuada previamente. Los pacientes se habían realizado un tatuaje temporal en puestos callejeros durante el periodo estival (2004-2005). Se incluyeron un total de 5 pacientes, 4 varones/1 mujer, con una edad media de 13 años (3-34 años) y un periodo de latencia medio de 9,4 días (5-14 días). Para el tatuado usaron tinta de color negro y plantillas de material plástico. Ninguno de los pacientes había tenido contacto previo con tintes capilares ni tatuajes y tampoco refirieron antecedentes personales de dermatitis atópica. Se realizaron pruebas epicutáneas con la batería estándar del GEIDC (TRUE TEST® Pharmacia. Hillerod. Denmark), con lectura a las 48 y 96 horas. Resultados. Se confirma una sensibilización a la PPD en 3 pacientes, en uno de ellos también a formaldehído. En 3 pacientes persisten las cicatrices hipopigmentadas. Conclusiones. Los pseudotatuajes con henna negra son una fuente de sensibilización a PPD con consecuencias graves potenciales a medio-largo plazo. En la actualidad no existe ninguna ley que regule la práctica de este tipo de tatuajes en nuestro país (AU)

Introduction. In the last years there have been increasing reports of adverse cutaneous reactions to temporary black henna tattoos. Black henna does not exist naturally, it is obtained from original henna after the addition of other compounds, among them paraphenilendiamine (PPD), that darken it and facilitate the process of tattoing. Paraphenilendiamine is an aromatic compound that presents cross reactions with other components that have a benzene ring in their molecular structure. Many of these products may be present in the daily life of any person. Material and methods. We reviewed patients that have shown erythema, inflammation and/or vesiculation in a previously tattooed area. The patients have undergone a temporary tattoo in street stalls during the summer period (2004-2005). A total of five patients were included, there were four men and one woman with a mean age of 13 years (3-34) and a mean latency period of 9.4 days (5-14). Black ink and plastic stencils were used to perform the tattoo. None of the patients has had previous contact with hair dyes or tattoos and none of them referred a personal history of atopic dermatitis. Patch testing was carried out using the standard set of the Spanish Group for Research in Contact Dermatitis [GEIDC] (TRUE TEST ®, Pharmacia. Hillerod. Denmark), with readings at 48 and 96 hours. Results. Sensitization to PPD is confirmed in three patients, one of them was also sensitized to formaldehyde. Hypopigmented scars persist in three patients. Conclusions. Black henna pseudotattoos are a source of sensitization to PPD with potential severe consequences in a medium to long term. Currently there is no specific legislation with respect to the practice of this type of tattoos in our country (AU)