Abstract Infantile hemangioma is the most common pediatric vascular tumor, with the following risk factors: low birth weight, prematurity, white skin, female gender, multiparity and advanced maternal age. The use of oral and topical beta-blockers, although recent, has emerged as the first line of treatment, with superior safety and efficacy to previously used therapies, such as corticosteroids and surgeries. This report describes two cases of nasal tip infantile hemangioma, treated with oral propranolol. Both presented excellent therapeutic responses.

Abstract Wade’s histoid leprosy (HL) is a rare variant of multibacillary leprosy, with characteristic clinical, immunologic, histopathologic, and bacteriologic features. It is associated with resistance to sulfa drugs or polychemotherapy and is rarely observed in patients who have not undergone prior treatment. Clinically, HL resembles keloid or dermatofibroma. Furthermore, HL is rare in children and is difficult to diagnose even by experts. This report describes a case of HL in a 14-year-old Brazilian boy, who presented with multiple nodular and tumor-like lesions, simulating keloids. He had not undergone prior treatment with anti-leprosy drugs, which accentuates the relevance of this case report.

Abstract The human T-cell lymphotropic virus-1 (HTLV-1) affects worldwide population; the estimated number of currently infected individuals is 10-20 million. In this report, we describe the clinical findings of three family members with vertical transmission of HTLV-1. This case report highlights the importance of healthcare providers who have optimal knowledge about HTLV-1 including its transmission and pertinent attributes, and who are able to provide affected individuals with adequate information regarding their condition.

Abstract BACKGROUND: The role played by vitamin D in atopic dermatitis is controversial and has been the focus of many studies. The ultraviolet index has not been considered in this type of research. OBJECTIVES: The objectives of the study were to assess 25-hydroxy vitamin D [25(OH)D] serum level in atopic dermatitis patients and control group, to investigate the association between atopic dermatitis clinical severity (using the SCORing Atopic Dermatitis index - SCORAD) and 25(OH)D serum levels, and to evaluate the independent predictors, including Ultraviolet index, SCORAD and 25(OH)D. METHODS: We conducted a cross-sectional study of 106 atopic dermatitis patients. A control group was matched with a subsample of 54 participants with atopic dermatitis. SCORAD index, laboratory tests, and local Ultraviolet index were assessed. RESULTS: The atopic dermatitis patients had serum 25(OH)D levels and mean UVI significantly higher than the control group. Immunoglobulin E and Ultraviolet index were associated with the SCORAD index. Skin type, age and Ultraviolet index were independent predictors of 25(OH)D. CONCLUSIONS: Although statistically significant, the different levels of 25(OH)D between the paired groups may be attributed to the higher mean Ultraviolet index in atopic dermatitis patients. Since Ultraviolet index is an independent predictor of SCORAD index and of 25(OH)D level, it may work as a confounding factor in studies involving atopic dermatitis and 25(OH)D and must be considered in this kind of research.

Abstract: Epidermolysis bullosa comprises a group of phenotypically different genodermatosis, hereditary or acquired, characterized by skin fragility and subsequent formation of blisters in response to mechanical trauma, and which may also affect mucous membranes. This study aimed to analyze the relation between the nutritional, hematologic, infectious characteristics and the type of epidermolysis bullosa, through a descriptive case study based on data from medical records of 10 patients with epidermolysis bullosa assisted regularly at the Dermatology Clinic of the Hospital Universitário de Brasília. The old classification of the type of epidermolysis bullosa, weight and height, blood count, white blood cell count, platelet count and description of the type and frequency of secondary infections during the service were considered. We verified a predominance of iron deficiency anemia, chronic leukocytosis, thrombocytosis, chronic malnutrition, low height for age and thinness, and people with epidermolysis bullosa simplex exhibited appropriate relation between height/age and BMI/age. The non-specific skin infection was the most prevalent in both sexes. The severity of the type of epidermolysis bullosa and frequency of secondary infections did not form a directly proportional relation. The absence of direct proportion in all cases between the type of epidermolysis bullosa and the analysis parameters suggest a possible significant interference from other aspects such as the extent of the affected skin area, extracutaneous type of engagement and specific genetic mutation. The inclusion of these factors in the new classification proposed by Fine et al can contribute significantly to a better correlation of clinical parameters and appropriate preventive and therapeutic approaches.

Epidermolysis Bullosa is a genetic disorder that affects mainly the skin, however, all others systems are influenced. The nutritional care of children and adolescents with Epidermolysis Bullosa is a key treatment strategy, since the energy needs are increased due to the disease's metabolism, burdening the immune system and cicatrization process, symptoms caused by the disease hinder the intake and adequate absorption of nutrients, which may result in inadequate growth and development. Because this is a rare disease, there are few professionals who know the characteristics of both the clinical evolution and nutritional and dietary treatments. This literature review discusses the latest knowledge on energy and specific nutrient requirements to the dietary treatment and monitoring of children and adolescents with Epidermolysis Bullosa.

Pacientes com dermatite atópica têm fatores de risco geneticamente determinados que afetam a função de barreira da pele e as respostas imunes, as quais interagem com fatores ambientais. Clinicamente, isso resulta em uma pele intensamente pruriginosa, inflamada, que permite a penetração de irritantes e alérgenos e predispõe os pacientes à colonização e à infecção por micro-organismos. Dentre os diversos fatores etiológicos responsáveis pelo aumento da prevalência de doenças atópicas nas últimas décadas, o papel da vitamina D tem ganhado destaque. Uma vez que a patogênese da dermatite envolve uma interação complexa da disfunção da barreira epidérmica e desregulação da resposta imune - e a vitamina D está envolvida em ambos os processos-, é razoável esperar que a vitamina D esteja associada ao risco ou à gravidade da dermatite atópica. Tal associação é sugerida por dados epidemiológicos e experimentais. Nessa revisão, serão abordadas as evidências favoráveis e contrárias a essa polêmica relação, enfatizando os possíveis mecanismos etiopatogênicos envolvidos.

Patients with atopic dermatitis have genetically determined risk factors that affect the barrier function of the skin and immune responses that interact with environmental factors. Clinically, this results in an intensely pruriginous and inflamed skin that allows the penetration of irritants and allergens and predisposes patients to colonization and infection by microorganisms. Among the various etiological factors responsible for the increased prevalence of atopic diseases over the past few decades, the role of vitamin D has been emphasized. As the pathogenesis of AD involves a complex interplay of epidermal barrier dysfunction and dysregulated immune response, and vitamin D is involved in both processes, it is reasonable to expect that vitamin D's status could be associated with atopic dermatitis' risk or severity. Such association is suggested by epidemiological and experimental data. In this review, we will discuss the evidence for and against this controversial relationship, emphasizing the possible etiopathogenic mechanisms involved.

A onicomicose é afecção frequente, representando até 50% do total das doenças ungueais. Um ensaio clinico (ClinicalTrials.gov: NCT01528813) em atual desenvolvimento usa o laser de Er:YAG 2940nm para realizar ablação fracionada in vivo de unhas humanas visando aumentar a permeabilidade ungueal ao esmalte de amorolfina, visando aumentar a eficácia do tratamento tópico da onicomicose subungueal distal lateral. Resultados parciais tem demonstrado um aumento na área ungueal livre de doença nas unhas tratadas com o laser, em comparação ao uso isolado do esmalte. Acreditamos que lasers ablativos possam aumentar a eficácia do tratamento tópico da onicomicose.

Onychomycosis is a common disease, accounting for up to 50% of all ungual pathologies. We have been developing a clinical trial (ClinicalTrials.gov: NCT01528813) using a 2940nm Er:YAG laser to fractionally ablate human nails in vivo, aiming to increase topical amorolfine lacquer delivery to the nail unit, increasing the efficacy of topical treatment of distal and lateral subungual onychomycosis. Partial results have shown an increase in areas of nail plate free of disease. We believe that ablative lasers can increase the efficacy of topical onychomycosis treatment.

Um mosaico é um organismo formado por duas ou mais populações de células geneticamente distintas originadas a partir de um mesmo zigoto geneticamente homogêneo. Os mosaicismos são as expressões clínicas dessa desordem, e a mutação gênica seu evento determinante, que pode ser tanto estrutural quanto funcional. Os mosaicismos cutâneos costumam se expressar em padrões específicos, dentre os quais podem ser mencionados as prevalentes linhas de Blaschko, o padrão "checkerboard", o padrão filóide, o padrão em placa sem separação na linha média e o padrão de lateralização, que serão abordados neste artigo. Desde 1901, momento da primeira descrição das linhas de Blaschko, o estudo dos mosaicismos tem contribuído para a elucidação do comportamento de numerosas desordens genéticas, de forma a criar perspectivas terapêuticas para essas doenças, incluindo a promissora terapia gênica.

A mosaic is an organism composed of two or more genetically distinct cell populations derived from a genetically homogeneous zygote. Cutaneous mosaicisms are the clinical expressions of these disorders. The main event which allows the existence of mosaicism is a genetic mutation, either structural or functional. Cutaneous mosaicisms usually manifest by specific patterns on the skin and the archetypic pattern is the system of Blaschko lines, but others include checkerboard, phylloid, large patches without midline separation and lateralization. Since 1901, when Blaschko lines were first described, the study of mosasicism has helped to elucidate the behavior of numerous genetic diseases, generating therapeutic perspectives for these pathologies, including the promising gene therapy.

FUNDAMENTOS: A Síndrome Lipodistrófica Associada ao HIV/AIDS compreende alterações na distribuição da gordura corporal, acompanhada ou não de alterações metabólicas. A perda da gordura facial, chamada lipoatrofia facial, é dos sinais mais estigmatizantes da síndrome.OBJETIVOS: Avaliar o impacto do tratamento dalipoatrofia facial com implante de polimetilmetacrilato sobre a progressão da doença, avaliada pela contagem da carga viral e a contagem de células CD4.MÉTODOS: Estudo prospectivlipoatrofia facial clinicamente detectável e sem tratamento prévio. Foi realizado implante de polimetilmetacrilato para preenchimento das áreas atróficas. Foram realizadas contagem da carga viral e células CD4 antes e após o tratamento.RESULTADOS: Dos 44 pacientes, 72,72% eram do sexo masculino e 27,27% do feminino, e idade média de 44,38 anos. Antes do tratamento, 82% dos pacientes apresentavam carga viral indetectável, que aumentou para 88,6% após o tratamento, mas sem significância estatística (p=0,67). A contagem de CD4 antes do implante variou de 209 a 1293, com média de 493,97. Após o tratamento, essa média aumentou para 548,61. O aumento do CD4 após o tratamento foi estatisticamente significativo, com p=0,02.CONCLUSÃO: O tratamento dalipoatrofia facial com implante de polimetilmetacrilato levou ao aumento estatisticamente significativo da contagem de CD4, mostrando impacto do tratamento da LF sobre a evolução da doença. A carga viral antes e após tratamento não variou de maneira estatisticamente significativa.

BACKGROUND: HIV/AIDS-Associated Lipodystrophy Syndrome includes changes in body fat distribution, with or without metabolic changes. The loss of fat from the face, called facial lipoatrophy, is one of the most stigmatizing signs of the syndrome.OBJECTIVES:To evaluate the effect of FL treatment using polymethylmethacrylate (PMMA) implants on disease progression, assessed by viral load and CD4 cell count.METHODS: This was a prospective study of 44 patients treated from July 2009 to December 2010. Male and female patients, aged over 18 years, with clinically detectable FL and who had never been treated were included in the study. PMMA implantation was done to fill atrophic areas. Laboratory tests were conducted to measure viral load and CD4 count before and after treatment.RESULTS: Of the 44 patients, 72.72% were male and 27.27% female, mean age of 44.38 years. Before treatment, 82% of patients had undetectable viral load, which increased to 88.6% after treatment, but without statistical significance (p = 0.67). CD4 count before treatment ranged from 209 to 1293, averaging 493.97. After treatment, the average increased to 548.61. The increase in CD4 count after treatment was statistically significant with p = 0.02.CONCLUSION: The treatment of FL with PMMA implants showed a statistically significant increase in CD4 count after treatment, revealing the impact of FL treatment on disease progression. Viral load before and after treatment did not vary significantly.

O melasma representa desordem pigmentar de difícil tratamento. O presente estudo tem como propósito apresentar ampla revisão da literatura acerca do uso de laser ablativos (Er:YAG e CO2) no tratamento do melasma, estabelecendo o nível de evidência dos estudos publicados até o instante. Um total de 75 pacientes foram envolvidos entre quatro séries de casos (n=39), um ensaio clínico controlado (n=6) e um ensaio clínico controlado e randomizado (n=30). Os estudos acerca do laser de Er:YAG demonstraram melhores resultados com o uso de pulsos de forma quadrada, os quais determinaram menores taxas de hiperpigmentação pós-inflamatória. Ademais, os estudos com laser de CO2 também demonstraram benefício no uso de pulsos curtos com baixa densidade de energia. O uso de cremes despigmentantes no período pós-tratamento se mostrou necessária e efetiva na manutenção de resultados à longo prazo. Os lasers ablativos, por conseguinte, podem representar ferramenta efetiva e de grande utilidade no manejo do melasma. Entretanto, hiperpigmentação pós-inflamatória e dificuldade na manutenção de resultados à longo prazo parecem representar as principais limitações atuais ao seu amplo uso. Por conseguinte, com base nas atuais evidências, o uso de tais tecnologias ainda deve ser restrita à casos de doença recalcitrante. Novos estudos ainda são necessários para o estabelecimento de parâmetros e regimes ideais de tratamento.

Melasma represents a pigmentary disorder that is difficult to treat. This study aims to broadly review the use of ablative lasers (Er:YAG and CO2) in the treatment of melasma, presenting the level of evidence of studies published to date. A total of 75 patients were enrolled in four case series studies (n=39), one controlled clinical trial (n=6) and one randomized controlled clinical trial (n=30). Studies on the Er:YAG laser showed better results with the use of short square-shaped pulses, which determined low rates of post-inflammatory hyperpigmentation and long-lasting maintenance of results. Likewise, studies on the CO2 laser proved the benefits of short pulse duration along with low-density energy. Post-treatment maintenance with the use of antipigmenting creams was necessary and effective to sustain long-term results. Ablative lasers may represent another useful and effective tool against melasma. Postinflammatory hyperpigmentation and difficulty in sustaining long-term results still represent the main limitations to a broader use of ablative lasers. Based on actual evidence, the use of this technology should be restricted to patients with recalcitrant disease. Further studies will help establish optimal laser parameters and treatment regimens.

A pele é, muitas vezes, reflexo de manifestações sistêmicas. Doenças neoplásicas que afetam órgãos internos podem exibir manifestações cutâneas diversas. Apesar de relativamente incomuns, o reconhecimento de dermatoses paraneoplásicas pode levar ao diagnóstico precoce da neoplasia e, consequentemente, determinar melhor prognóstico. Nesta revisão serão discutidas as manifestações cutâneas paraneoplásicas com maior força de associação a neoplasias, que incluem acantose nigricante maligna, paquidermatoglifia adquirida, erythema gyratum repens, síndrome de Bazex, hipertricose lanuginosa adquirida, eritema necrolítico migratório, sinal de Leser-Trélat e pênfigo paraneoplásico. Para cada condição serão revisadas e atualizadas as manifestações clínicas, principais neoplasias associadas e etiopatogenia.

The skin often signals systemic changes. Some neoplastic diseases that affect internal organs may trigger several cutaneous manifestations. Although these dermatoses are relatively unusual, the recognition of some typical paraneoplastic dermatoses may lead to the early diagnosis of a neoplasm and determine a better prognosis. In this review article, we discuss the paraneoplastic cutaneous manifestations strongly associated with neoplasms, which include acanthosis nigricans maligna, tripe palms, erythema gyratum repens, Bazex syndrome, acquired hypertrichosis lanuginosa, necrolytic migratory erythema, Leser-Trélat sign and paraneoplastic pemphigus. We also review the clinical manifestations of each condition and include updated knowledge on disease pathogenesis.

A piodermatite-pioestomatite vegetante é uma dermatose mucocutânea rara, caracterizada por lesões pustulosas e vegetantes na pele e mucosa oral. É considerada um marcador altamente específico para doenças intestinais inflamatórias. Os autores descrevem um caso de piodermatite-pioestomatite vegetante em paciente pediátrico, o qual apresentou boa resposta a corticoterapia oral associada à azatioprina e à dapsona. A vigilância intestinal é mandatória, uma vez que a dermatose está associada a doenças intestinais inflamatórias em mais de 70% dos casos, especialmente a colite ulcerativa.

Pyodermatitis-pyostomatitis vegetans is a rare mucocutaneous dermatosis characterized by pustular and vegetating lesions of the skin and oral mucosa. It is considered a highly specific marker for inflammatory bowel diseases. The authors describe a case of pyodermatitis-pyostomatitis vegetans in a pediatric patient who presented marked clinical improvement after beginning treatment with oral corticosteroids, azathioprine, and dapsone. Bowel surveillance is mandatory, since the dermatosis is associated with inflammatory bowel diseases in more than 70% of patients, especially ulcerative colitis.