Acné inducido por vitamina B12 / Vitamin B12-induced acne

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Perianal Dermatitis.

BACKGROUND: Perianal complaints are often consulted in dermatology clinics, and in many cases, a conclusive diagnosis is not easily made. OBJECTIVE: The aim of this study was to study and identify the epidemiological, clinical, and contact allergy features of patients with perianal dermatitis who attended at a contact dermatitis unit in a tertiary hospital in Spain. METHODS: Adult patients with long-lasting (>4 weeks) perianal dermatitis were recruited during the past 10 years for investigation and follow-up. Every patient underwent a diagnostic workup consisting of dermatological exploration and patch tests with the standard and specific series, as well as the patients' own products. General surgical exploration was also performed in some patients. RESULTS: One hundred twenty-four patients were included. The MOAHLFA index was as follows: 43.5, 0, 4.8, 11.3, 1.6, 8.1, and 75. The main final diagnoses were allergic contact dermatitis (32.3%), psoriasis (24.2%), irritant contact dermatitis (17.7%), and lichen simplex (neurodermatitis) (10%). Eighty-one patients (66.1%) showed 1 or more positive reactions, and in 52 patients (43%), positive reactions relevant to the present disease were found. CONCLUSIONS: Contact allergy in patients with long-lasting perianal complaints is frequent. It is mandatory for these patients to be referred to a dermatologist for an adequate evaluation and patch testing. Methylchloroisothiazolinone/methylisothiazolinone seems as the most common allergen implicated in perianal contact dermatitis.

Hidradenitis ecrina neutrofílica en un paciente en tratamiento con antirretrovirales de gran actividad / Neutrophilic eccrine hidradenitis in a patient treated with highly activity antiretroviral therapy

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Calcifilaxia. Estudio de 9 casos / Calciphylaxis. A review of 9 cases

Fundamento y objetivo: La calcifilaxia es una vasculopatía cutánea isquémica de vasos de pequeño tamaño con una alta morbimortalidad. Hasta el momento actual han sido publicadas muy pocas series de pacientes con esta enfermedad, ninguna procedente de un hospital español. Los principales objetivos de este trabajo son analizar el perfil demográfico, clínico e histológico de los pacientes diagnosticados de calcifilaxia en nuestro servicio, para identificar posibles factores de riesgo y potenciales estrategias terapéuticas. Material y método: Estudio retrospectivo de los casos vistos en el Servicio de Dermatología con diagnóstico de calcifilaxia con una biopsia confirmatoria, en el periodo de enero de 2010 a agosto de 2015. Resultados: Se estudiaron 9 pacientes, con edades de 76-86 años. Todos tenían comorbilidades cardiovasculares y el 67% tenía insuficiencia renal. Se observó un 33% de mortalidad. Conclusiones: Ante el posible diagnóstico de calcifilaxia debe realizarse una analítica sanguínea completa para descartar otras causas de úlceras cutáneas. El tratamiento de estos pacientes debe llevarse a cabo por un equipo multidisciplinar. Resaltamos el papel del tiosulfato sódico en el tratamiento de esta entidad (AU)

Background and objective: Calciphylaxis is a cutaneous ischaemic vascular disease of small vessels with high morbidity and mortality. To date very few series of patients with this disease have been published, none from a Spanish hospital. The main objectives of this work are to analyze the demographic, clinical and histological profile of patients diagnosed in our department to identify risk factors and potential therapeutic strategies. Material and method: We made a retrospective study of the cases seen in the dermatology department with a diagnosis of calciphylaxis and who had a confirmatory biopsy in the period between January 2010 to August 2015. Results: Nine patients were studied, with an age range of 76-86 years. All had cardiovascular comorbidities and 67% had renal failure. A 33% mortality was observed. Conclusions: Faced with a possible diagnosis of calciphylaxis, a complete blood analysis is mandatory to rule out other causes of skin ulcers. The management of these patients should be undertaken by a multidisciplinary team. We emphasize the role of sodium thiosulfate in the treatment of this condition (AU)

[Calciphylaxis. A review of 9 cases]. / Calcifilaxia. Estudio de 9 casos.

BACKGROUND AND OBJECTIVE: Calciphylaxis is a cutaneous ischaemic vascular disease of small vessels with high morbidity and mortality. To date very few series of patients with this disease have been published, none from a Spanish hospital. The main objectives of this work are to analyze the demographic, clinical and histological profile of patients diagnosed in our department to identify risk factors and potential therapeutic strategies. MATERIAL AND METHOD: We made a retrospective study of the cases seen in the dermatology department with a diagnosis of calciphylaxis and who had a confirmatory biopsy in the period between January 2010 to August 2015. RESULTS: Nine patients were studied, with an age range of 76-86 years. All had cardiovascular comorbidities and 67% had renal failure. A 33% mortality was observed. CONCLUSIONS: Faced with a possible diagnosis of calciphylaxis, a complete blood analysis is mandatory to rule out other causes of skin ulcers. The management of these patients should be undertaken by a multidisciplinary team. We emphasize the role of sodium thiosulfate in the treatment of this condition.