[[Translated article]]Epidemiological, Clinical, and Allergic Profile of Psoriatic Patients. Evaluation of the Spanish Registry of Contact Dermatitis and Cutaneous Allergy (REIDAC).

BACKGROUND: Psoriasis is a chronic inflammatory dermatosis whose clinical and topographic distribution requires differential diagnosis, or the possible association with allergic contact dermatitis (ACD), requiring patch testing (PT) as part of the diagnostic procedure. OBJECTIVES: To describe the epidemiological, clinical, and allergic profile of patients with a primary or secondary diagnosis of psoriasis undergoing PT and compare them with patients with a diagnosis of ACD at the end of the diagnostic process. METHODS: Cross-sectional study with data from REIDAC from 2018 through 2023 of selected patients with a diagnosis of psoriasis and/or ACD. RESULTS: A total of 11 502 patients were included, 513 of whom had been diagnosed with primary or secondary psoriasis, 3640 with ACD, and 108 with both diseases. Men were more predominant in the groups of patients with psoriasis, psoriasis + ACD, and lesions were more predominantly seen in the hands with little association with atopic factors vs the ACD group. The rate of positivity in PT to the 2022 Spanish battery of allergens was lower in the group with psoriasis only in 27% of the patients. The most common allergens found in the psoriasis group were also the most common ones found in the overall ACD population. CONCLUSIONS: Overall, 36.2% of psoriatic patients tested positive in PT to the 2022 Spanish battery of allergens, which proved that this association is not uncommon. Overall, psoriatic patients had a higher mean age, were more predominantly men, and showed more hand involvement.

Standard and Expanded Series Patch Testing Update by the Spanish Contact Dermatitis and Skin Allergy Research Group (GEIDAC). / Actualización de la batería estándar y batería ampliada de pruebas alérgicas de contacto por el Grupo Español de Investigación en Dermatitis de Contacto y Alergia Cutánea (GEIDAC).

After the meeting held by the Spanish Contact Dermatitis and Skin Allergy Research Group (GEIDAC) back in October 2021, changes were suggested to the Spanish standard series patch testing. Hydroxyethyl methacrylate (2% pet.), textile dye mixt (6.6% pet.), linalool hydroperoxide (1% pet.), and limonene hydroperoxide (0.3% pet.) were, then, added to the series that agreed upon in 2016. Ethyldiamine and phenoxyethanol were excluded. Methyldibromoglutaronitrile, the mixture of sesquiterpene lactones, and hydroxyisohexyl 3-cyclohexene (Lyral) were alo added to the extended Spanish series of 2022.

Epidemiological, Clinical, and Allergic Profile of Psoriatic Patients. Evaluation of the Spanish Registry of Contact Dermatitis and Cutaneous Allergy (REIDAC). / Perfil epidemiológico, clínico y alérgico en pacientes con psoriasis. Evaluación del Registro Español de Dermatitis de Contacto (REIDAC).

BACKGROUND: Psoriasis is a chronic inflammatory dermatosis whose clinical and topographic distribution requires differential diagnosis, or the possible association with allergic contact dermatitis (ACD), requiring patch testing (PT) as part of the diagnostic procedure. OBJECTIVES: To describe the epidemiological, clinical, and allergic profile of patients with a primary or secondary diagnosis of psoriasis undergoing PT and compare them with patients with a diagnosis of ACD at the end of the diagnostic process. METHODS: Cross-sectional study with data from REIDAC from 2018 through 2023 of selected patients with a diagnosis of psoriasis and/or ACD. RESULTS: A total of 11 502 patients were included, 513 of whom had been diagnosed with primary or secondary psoriasis, 3640 with ACD, and 108 with both diseases. Men were more predominant in the groups of patients with psoriasis, psoriasis+ACD, and lesions were more predominantly seen in the hands with little association with atopic factors vs the ACD group. The rate of positivity in PT to the 2022 Spanish battery of allergens was lower in the group with psoriasis only in 27% of the patients. The most common allergens found in the psoriasis group were also the most common ones found in the overall ACD population. CONCLUSIONS: Overall, 36.2% of psoriatic patients tested positive in PT to the 2022 Spanish battery of allergens, which proved that this association is not uncommon. Overall, psoriatic patients had a higher mean age, were more predominantly men, and showed more hand involvement.

[Translated article] Four-year Epidemiological Surveillance of the Spanish Registry of Research in Contact Dermatitis and Cutaneous Allergy: Current Situation and Trends.

BACKGROUND: The epidemiological surveillance of contact dermatitis is one of the objectives of the Spanish Registry of Research in Contact Dermatitis and Cutaneous Allergy. Knowing whether the prevalence of positive tests to the different allergens changes over time is important for this monitoring process. OBJECTIVES: To describe the various temporary trends in allergen positivity in the GEIDAC standard series from 2018 through December 31, 2022. METHODS: This was a multicenter, observational trial of consecutive patients analyzed via patch tests as part of the study of possible allergic contact dermatitises collected prospectively within the Spanish Registry of Research in Contact Dermatitis and Cutaneous Allergy. The data was analyzed using 2 statistical tests: one homogeneity test (to describe the changes seen over time) and one trend test (to see whether the changes described followed a linear trend). RESULTS: A total of 11327 patients were included in the study. Overall, the allergens associated with a highest sensitization were nickel sulfate, methylisothiazolinone, cobalt chloride, methylchloroisothiazolinone/methylisothiazolinone, and fragrance mix i. A statistically significant decrease was found in the percentage of methylisothiazolinone positive tests across the study years with an orderly trend. CONCLUSIONS: Although various changes were seen in the sensitizations trends to several allergens of the standard testing, it became obvious that a high sensitization to nickel, methylchloroisothiazolinone/methylisothiazolinone and fragrances mix i remained. Only a significant downward trend was seen for methylisothiazolinone.

Four-year Epidemiological Surveillance of the Spanish Registry of Research in Contact Dermatitis and Cutaneous Allergy: Current Situation and Trends. / Vigilancia epidemiológica en los últimos 4 años del Registro Español de Investigación en Dermatitis de Contacto y Alergia Cutánea: situación actual y tendencias.

BACKGROUND: The epidemiological surveillance of contact dermatitis is one of the objectives of the Spanish Registry of Research in Contact Dermatitis and Cutaneous Allergy. Knowing whether the prevalence of positive tests to the different allergens changes over time is important for this monitoring process. OBJECTIVES: To describe the various temporary trends in allergen positivity in the GEIDAC standard series from 2018 through December 31, 2022. METHODS: This was a multicenter, observational trial of consecutive patients analyzed via patch tests as part of the study of possible allergic contact dermatitises collected prospectively within the Spanish Registry of Research in Contact Dermatitis and Cutaneous Allergy. The data was analyzed using 2 statistical tests: one homogeneity test (to describe the changes seen over time) and one trend test (to see whether the changes described followed a linear trend). RESULTS: A total of 11327 patients were included in the study. Overall, the allergens associated with a highest sensitization were nickel sulfate, methylisothiazolinone, cobalt chloride, methylchloroisothiazolinone/methylisothiazolinone, and fragrance mix i. A statistically significant decrease was found in the percentage of methylisothiazolinone positive tests across the study years with an orderly trend. CONCLUSIONS: Although various changes were seen in the sensitizations trends to several allergens of the standard testing, it became obvious that a high sensitization to nickel, methylchloroisothiazolinone/methylisothiazolinone and fragrances mix i remained. Only a significant downward trend was seen for methylisothiazolinone.

Epidemiological, Clinical, and Allergy Profile of Patients With Atopic Dermatitis and Hand Eczema: Evaluation of the Spanish Contact Dermatitis Registry (REIDAC). / Perfil epidemiológico, clínico, y alérgico en pacientes con dermatitis atópica y dermatitis de las manos. Evaluación del Registro Español de Dermatitis de Contacto (REIDAC).

BACKGROUND: Hand eczema is common in patients with atopic dermatitis (AD), but few studies have described the characteristics of these patients in large, representative populations from different geographic regions and occupational settings. OBJECTIVE: To describe the epidemiological, clinical, and allergy profile of patients with hand eczema who underwent patch testing and compare patients with and without AD. METHODS: Analysis of data from the Spanish Contact Dermatitis Registry, a multicenter registry of patients who undergo patch testing in Spain. RESULTS: We included 1466 patients with hand eczema who were patch tested between January 2018 and June 2020. Those with AD were younger and had had symptoms for longer before testing. They were also more likely to have been exposed to occupational triggers (38% vs 53% for patients without AD). The only profession for which significant differences were found was hairdressing. The most common allergens were nickel sulfate, methylchloroisothiazolinone/methylisothiazolinone, cobalt chloride, potassium dichromate, fragrance mixes I and II, and formaldehyde. The most common diagnoses were allergic contact dermatitis (24% vs 31% in patients with and without AD, P=.0224) and irritant contact dermatitis (18% and 35% respectively, P<.001). CONCLUSIONS: AD is common in patients with predominant hand eczema who undergo patch testing. Patients with hand eczema and AD have different clinical and epidemiological characteristics to hand eczema patients in general and their final diagnosis following patch testing is also different.

Perfil epidemiológico, clínico, y alérgico en pacientes con dermatitis atópica y dermatitis de las manos. Evaluación del Registro Español de Dermatitis de Contacto (REIDAC) / Epidemiological, Clinical, and Allergy Profile of Patients With Atopic Dermatitis and Hand Eczema: Evaluation of the Spanish Contact Dermatitis Registry (REIDAC)

Background: Hand eczema is common in patients with atopic dermatitis (AD), but few studies have described the characteristics of these patients in large, representative populations from different geographic regions and occupational settings. Objective: To describe the epidemiological, clinical, and allergy profile of patients with hand eczema who underwent patch testing and compare patients with and without AD. Methods: Analysis of data from the Spanish Contact Dermatitis Registry, a multicenter registry of patients who undergo patch testing in Spain. Results: We included 1466 patients with hand eczema who were patch tested between January 2018 and June 2020. Those with AD were younger and had had symptoms for longer before testing. They were also more likely to have been exposed to occupational triggers (38% vs 53% for patients without AD). The only profession for which significant differences were found was hairdressing. The most common allergens were nickel sulfate, methylchloroisothiazolinone/methylisothiazolinone, cobalt chloride, potassium dichromate, fragrance mixes I and II, and formaldehyde. The most common diagnoses were allergic contact dermatitis (24% vs 31% in patients with and without AD, P=.0224) and irritant contact dermatitis (18% and 35% respectively, P<.001). Conclusions: AD is common in patients with predominant hand eczema who undergo patch testing. Patients with hand eczema and AD have different clinical and epidemiological characteristics to hand eczema patients in general and their final diagnosis following patch testing is also different (AU)

Antecedentes: La dermatitis de las manos (DM) es frecuente en los pacientes con dermatitis atópica (DA). Pocos estudios describen las características de estos pacientes a partir de poblaciones amplias y representativas de ámbitos geográficos y laborales diferentes. Objetivos: Describir el perfil epidemiológico, clínico y alérgico de los pacientes con DM a los que se realizan pruebas epicutáneas, comparando los pacientes con DA con los pacientes sin DA. Métodos. El estudio se ha realizado a partir de los datos del REIDAC, un registro multicéntrico nacional de pacientes a los que se realizan pruebas epicutaneas. Resultados: Se incluyeron 1466 pacientes parcheados por DM desde enero de 2018 hasta junio de 2020. Los pacientes con DA fueron más jóvenes y con una duración de los síntomas mayor. Los antecedentes ocupacionales como desencadenantes se registraron en menor medida que en los pacientes no atópicos (38 vs 53%). La única profesión en la que se encontraron diferencias significativas fue la peluquería. Los alérgenos más detectados fueron el sulfato de níquel, la metilcloroisotiazolinona/metilisotiazolinona, el cloruro de cobalto, el dicromato potásico, mezcla de fragancias I y II, y el formaldehido. Los diagnósticos más frecuentes fueron dermatitis alérgica de contacto (DAC); 24% en atópicos vs 31% en no atópicos (p 0.0224) y el eccema de contacto irritativo; 18% atópicos vs 35% no atópicos (p<0.001). Conclusiones: La DA es frecuente en los pacientes parcheados con afectación predominante de las manos. Existen diferencias clínicas, epidemiológicas y de diagnóstico final de estos pacientes con respecto al conjunto de pacientes con DM (AU)

[Translated article] Epidemiological, Clinical, and Allergy Profile of Patients With Atopic Dermatitis and Hand Eczema: Evaluation of the Spanish Contact Dermatitis Registry (REIDAC) / Perfil epidemiológico, clínico, y alérgico en pacientes con dermatitis atópica y dermatitis de las manos. Evaluación del Registro Español de Dermatitis de Contacto (REIDAC)

Antecedentes: La dermatitis de las manos (DM) es frecuente en los pacientes con dermatitis atópica (DA). Pocos estudios describen las características de estos pacientes a partir de poblaciones amplias y representativas de ámbitos geográficos y laborales diferentes. Objetivos: Describir el perfil epidemiológico, clínico y alérgico de los pacientes con DM a los que se realizan pruebas epicutáneas, comparando los pacientes con DA con los pacientes sin DA. Métodos. El estudio se ha realizado a partir de los datos del REIDAC, un registro multicéntrico nacional de pacientes a los que se realizan pruebas epicutaneas. Resultados: Se incluyeron 1466 pacientes parcheados por DM desde enero de 2018 hasta junio de 2020. Los pacientes con DA fueron más jóvenes y con una duración de los síntomas mayor. Los antecedentes ocupacionales como desencadenantes se registraron en menor medida que en los pacientes no atópicos (38 vs 53%). La única profesión en la que se encontraron diferencias significativas fue la peluquería. Los alérgenos más detectados fueron el sulfato de níquel, la metilcloroisotiazolinona/metilisotiazolinona, el cloruro de cobalto, el dicromato potásico, mezcla de fragancias I y II, y el formaldehido. Los diagnósticos más frecuentes fueron dermatitis alérgica de contacto (DAC); 24% en atópicos vs 31% en no atópicos (p 0.0224) y el eccema de contacto irritativo; 18% atópicos vs 35% no atópicos (p<0.001). Conclusiones: La DA es frecuente en los pacientes parcheados con afectación predominante de las manos. Existen diferencias clínicas, epidemiológicas y de diagnóstico final de estos pacientes con respecto al conjunto de pacientes con DM (AU)

Background: Hand eczema is common in patients with atopic dermatitis (AD), but few studies have described the characteristics of these patients in large, representative populations from different geographic regions and occupational settings. Objective: To describe the epidemiological, clinical, and allergy profile of patients with hand eczema who underwent patch testing and compare patients with and without AD. Methods: Analysis of data from the Spanish Contact Dermatitis Registry, a multicenter registry of patients who undergo patch testing in Spain. Results: We included 1466 patients with hand eczema who were patch tested between January 2018 and June 2020. Those with AD were younger and had had symptoms for longer before testing. They were also more likely to have been exposed to occupational triggers (38% vs 53% for patients without AD). The only profession for which significant differences were found was hairdressing. The most common allergens were nickel sulfate, methylchloroisothiazolinone/methylisothiazolinone, cobalt chloride, potassium dichromate, fragrance mixes I and II, and formaldehyde. The most common diagnoses were allergic contact dermatitis (24% vs 31% in patients with and without AD, P=.0224) and irritant contact dermatitis (18% and 35% respectively, P<.001). Conclusions: AD is common in patients with predominant hand eczema who undergo patch testing. Patients with hand eczema and AD have different clinical and epidemiological characteristics to hand eczema patients in general and their final diagnosis following patch testing is also different (AU)

Tumoración exofítica y lineal en el dorso de la lengua / Linear Exophytic Tumor on the Dorsum of the Tongue

No disponible

Hiperplasia epitelial multifocal: un caso familiar / Multifocal epithelial hyperplasia: a familial case

La hiperplasia epitelial multifocal (HEM) o enfermedad de Heck es una patología de la mucosa oral poco frecuente en nuestro medio. Está producida por el virus del papiloma humano (VPH), asociándose fundamentalmente a los tipos 13 y 32. Se presenta en la infancia (3–18 años) y se describe mayor prevalencia en mujeres y en determinados grupos étnicos (indios americanos y esquimales). Consiste en una proliferación epitelial benigna, asintomática, en forma de múltiples pápulas de 3 a 10mm de color mucosa oral normal. Varón ecuatoriano de 14 años, con lesiones papulosas en mucosa oral de inicio a los 4 años de edad. Su madre, de 32 años, presenta idénticas lesiones. Conclusión: Presentamos dos miembros de una familia ecuatoriana con HEM. Aunque se trata de una patología rara en nuestro medio debemos pensar en esta enfermedad dado el aumento de población inmigrante en España (AU)

Multifocal epithelial hyperplasia (MEH), or Heck disease, is a disease of the oral mucosa rarely seen in Spain. It is caused by the human papillomavirus (HPV), and is mainly associated with types 13 and 32. It appears in childhood (3–18 years) and a higher prevalence is reported in women and certain ethnic groups (American Indians and Eskimos). It consists of a benign, asymptomatic epithelial proliferation in the form of multiple papules of 3–10mm with a normal oral mucosa colour. The case involves an Ecuadorian male of 14 years, with papulous lesions in the oral mucosa with onset at 4 years of age. His 32 year-old mother had identical lesions. Conclusion: We present two members of an ecuadorian family with MEH. Although it is a rare disease in Spain, we must take this disease into account, given the increase in the immigrant population in Spain (AU)

[Multifocal epithelial hyperplasia: a familial case]. / Hiperplasia epitelial multifocal: un caso familiar.

UNLABELLED: Multifocal epithelial hyperplasia (MEH), or Heck disease, is a disease of the oral mucosa rarely seen in Spain. It is caused by the human papillomavirus (HPV), and is mainly associated with types 13 and 32. It appears in childhood (3-18 years) and a higher prevalence is reported in women and certain ethnic groups (American Indians and Eskimos). It consists of a benign, asymptomatic epithelial proliferation in the form of multiple papules of 3-10mm with a normal oral mucosa colour. The case involves an Ecuadorian male of 14 years, with papulous lesions in the oral mucosa with onset at 4 years of age. His 32 year-old mother had identical lesions. CONCLUSION: We present two members of an ecuadorian family with MEH. Although it is a rare disease in Spain, we must take this disease into account, given the increase in the immigrant population in Spain.

Indicadores de consulta externa dermatológica / Indicators of dermatology out-patient clinic visit

No disponible

No disponible

Fusariosis diseminada en paciente con leucemia mieloblástica aguda / Disseminated fusarium infection in a patient with acute myelogenous leukemia

Fusarium es un género de hongos de distribución universal, patógenos habituales de animales y plantas. Son agentes causales de infecciones graves en pacientes inmunodeprimidos, siendo éstas de difícil tratamiento y mal pronóstico. Presentamos el caso de un paciente de 62 años diagnosticado de leucemia mieloide aguda tipo M1-M2 secundaria a síndrome mielodisplásico que recibió tratamiento con quimioterapia y antibioterapia de amplio espectro y anfotericina B por cuadro febril sin foco aparente. El día +35 de quimioterapia se observaron en la espalda, brazos, muslos y cara escasas lesiones papulonodulares, eritematovioláceas, mal delimitadas, asintomáticas, algunas de ellas con centro necrótico, de 3-4 días de evolución, acompañadas de fiebre y mal estado general. La analítica demostró anemia, neutropenia y trombopenia. La radiografía de tórax mostró una condensación en hilio derecho y lóbulo superior izquierdo. La biopsia cutánea mostró la presencia de abundantes elementos fúngicos en dermis papilar y reticular, acompañados de una mínima respuesta inflamatoria. En el cultivo de la biopsia cutánea se identificó un hongo del género Fusarium. Se añadió al tratamiento previo itraconazol, sin mejoría. Las lesiones cutáneas y la sintomatología general mejoraron coincidiendo con el tratamiento con factor estimulante de colonias de granulocitos y la recuperación de la neutropenia, llegando el paciente a quedar asintomático (AU)

Lupus erythematosus-like lesions in a carrier of X-linked chronic granulomatous disease.

Chronic granulomatous disease (CGD) is an inherited immunodeficiency disease. Carrier status of CGD has been reported in association with lupus erythematosus-type lesions. A 35-year-old woman, mother of a child with X-linked CGD presented an 8-year history of erythematous plaques with an arciform pattern on the upper trunk, back and arms. The nitroblue tetrazolium test revealed the carrier status of the patient. Haematological, biochemical and immunological tests (including ANA, DNA, SSA-Ro, SSB-La, RNP, SM and Jo1 antibodies) were normal or negative except for a polyclonal hypergammaglobulinaemia with high serum IgA. Histological examination showed a papillary and perifollicular lymphohistiocytic infiltrate. Direct immunofluorescence was negative. We report a female carrier of X-linked CGD who developed clinical subacute lupus erythematosus-like lesions. We review the literature and discuss the pathogenetic mechanisms involved in the condition.

Sclerodermatous graft-versus-host disease after donor leucocyte infusion.

Leucocyte infusion from the marrow donor is a new therapeutic option to avoid repeated bone marrow transplants in patients with recurrent leukaemia. The treatment is based on the fact that alloreactive donor immune cells may recognize and eliminate residual leukaemia cells. This phenomenon has been called graft-versus-leukaemia. We describe a patient who received donor leucocyte infusion for a relapsed chronic myeloid leukaemia after his second bone marrow transplant and developed sclerodermatous graft-versus-host disease.