546 research outputs found

    Eruptive xanthoma with unexpected granuloma annulare-like microscopic appearance: Case report

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    Xantoma eruptivo e granuloma anular são doenças dermatológicas com quadros clínicos distintos que, algumas vezes, apresentam semelhanças histopatológicas que podem conduzir a diagnóstico errôneo. Relata-se o caso de paciente do sexo masculino com 34 anos, portador de dislipidemia, com lesões clinicamente características de xantoma eruptivo cujo exame histopatológico foi sugestivo de granuloma anular. No entanto, a revisão da lâmina mostrou tratar-se de xantoma eruptivo. A remissão completa e rápida das lesões após o tratamento da dislipidemia confirmou o diagnóstico de xantoma eruptivo e motivou a pesquisa sobre as semelhanças e diferenças histopatológicas entre essas doenças.Eruptive xanthoma with unexpected granuloma annulare-like microscopic appearance - Case report Abstract: Eruptive xanthoma and granuloma annulare are dermatological diseases with different clinical findings that, sometimes, exhibit histopathological similarities with potential for misinterpretation. We report a case of an eruption of yellow-orange papules with erythematous borders in a 34-year-old male with high levels of serum triglycerides and cholesterol. The skin biopsy specimen has diagnosed granuloma annulare. Review of the histologic material revealed eruptive xanthoma. Remission of the eruption after treatment of dyslipidemia confirmed the diagnosis of the eruptive xanthoma and motivated research about the histological similarities and differences between these diseases

    Soil contamination by eggs of soil-transmitted helminths with zoonotic potential in the town of Fernandópolis, State of São Paulo, Brazil, between 2007 and 2008

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    INTRODUÇÃO: A concentração de cães e gatos em áreas urbanas, associada a um número cada vez mais crescente da população errante desses animais, tem um papel epidemiológico importante na contaminação de solos de praças e parques públicos e na disseminação de infecções por variados gêneros de parasitas. O objetivo do presente estudo foi determinar a frequência de geo-helmintos com potencial zoonótico em solo de praças públicas e escolas municipais infantis da Cidade de Fernandópolis, Estado de São Paulo, Brasil, no período compreendido entre março de 2007 e fevereiro de 2008. MÉTODOS: Foram avaliadas todas as praças (32) e escolas (13) da cidade. As amostras foram testadas pelos métodos de Rugai adaptado, Willis e Caldwell e Caldwell. RESULTADOS: Foram avaliadas 225 amostras de solo com 30,2% (68) de positividade. Nas amostras provenientes de praças públicas, a positividade foi de 40% (64), ao passo que, nas escolas, foi de apenas 6,1% (6). Os ovos de parasitas encontrados foram Toxocara spp. 79,3% (47), Trichuris spp. 13,8% (8) e ancilostomídeos 6,9% (4). Variáveis relacionadas ao local, como o número de cães (OR 21,18 - IC95%: 10,81-41,51), de espécimes de fezes (OR 6,87 - IC95%: 3,51-13,47) e a utilização de cerca (OR 0,1 - IC95%: 0,05-0,20) tiveram impacto na contaminação do solo. CONCLUSÕES: Foram observados, nas amostras contaminadas, parasitas com potencial zoonótico, entre os quais estão os agentes etiológicos de doenças como a larva migrans visceral e cutânea, fato que representa risco a saúde da população que frequenta tais ambientes.INTRODUCTION: The concentration of dogs and cats in urban areas, associated with an ever-increasing wandering population of these animals, has an important epidemiological role in the soil contamination of public spaces and the spread of infections of several types of parasites. This study aimed to determine the frequency of soil-transmitted helminths with zoonotic potential in public squares and municipal primary schools in Fernandópolis, State of São Paulo, Brazil, conducted between 2007 and 2008. METHODS: All the squares (32) and schools (13) in the town were evaluated. Soil samples were tested using the Rugai method modified by Willis, Caldwell and Caldwell. RESULTS: A total of 225 soil samples were evaluated and 30.2% (68) were positive for helminths. In samples from public squares, 40% (64) contamination was observed; however, contamination in schools was only 6.1% (6). The parasites eggs identified were Toxocara spp. 79.3% (47), Trichuris spp. 13.8% (8) and Ancylostomatidae 6.9% (4). Variables related to the site, such as the number of dogs (OR 21.18, 10.81 - 41.51), fecal samples (OR 6.87, 3.51 - 13.47) and the use of fences (OR 0.1, 0.05 - 0.20), had an impact on soil contamination. CONCLUSIONS: In the contaminated samples, parasites with zoonotic potential were identified, including the etiologic agents of diseases like cutaneous and visceral larva migrans, a fact that poses a risk to health of the population that frequent such environments

    Head And Neck Reconstruction Using Infrahyoid Myocutaneous Flaps.

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    The use of pedicled myocutaneous flaps in head and neck reconstruction is widely accepted. Here we describe our experience with infrahyoid flaps (IHFs) employed to cover surgical defects in the oral cavity and oropharynx in patients with benign and malignant tumors. The aim was to evaluate the success rate for infrahyoid myocutaneous flap procedures performed at a single institution. Retrospective study, at the Head and Neck Surgery Service, Unicamp. Fourteen IHFs were used to reconstruct surgical defects in eleven men (78.5%) and three women (21.5%) with a mean age of 66.4 years. The anterior floor of the mouth was reconstructed in nine patients (64.2%), the base of tongue in three (21.4%), the lateral floor in one (7.1%), and the retromolar area (7.1%) in one. Thirteen patients (92.8%) had squamous cell carcinoma (SCC) and one (7.2%) ameloblastoma. The disease stage was T3 in eight (61.5%) of the SCC cases and T4 in five (38.5%). No patient presented total flap loss or fistula. The most common complication was epidermolysis, which delayed the beginning of oral ingestion. The patients with SCC received postoperative radiotherapy without major consequences to the flap. IHF is a safe and reliable procedure for reconstructing head and neck surgical defects. Due to its thinness and malleability, its use for oral cavity and oropharynx defects provides favorable cosmetic and functional outcomes. Complications, when present, are easy to manage.124271-

    The Contributions of Certain Variables in Determining Room Rates

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    Background: Researchers have given enormous importance to the hospitality industry, especially through studies that have analyzed the factors that affect traveler' decisions to book accommodation in hotels (e.g. room rate, amenities and location). However, data are generally examined from a guest's or a manager's point of view. Objective: This study examines factual data aiming to understand the extent to which the occupancy rate, quality, location and organizational form explain the room rates of hotels classified as four and five star. Data from hotels established in Salvador, Bahia, Brazil, for a period of eleven years were gently provided by hoteliers and analyzed by multiple regression tests. Results: Among the six models obtained, the best model shows that the predictor variables explain 72.8% of the fees charged by the hotels examined in our research, and that the 'hotel quality' and 'occupancy rate' variables are those that contribute most positively to the configuration of the response variable. Conclusion: The models delivered by this study are the outcome of the multiple regression tests performed with five variables. There are other variables which might be included. However, the five variables explain 72.8% of the fees. The study is relevant to hoteliers because it analyses variables that directly affects the revenues of hotels. Knowing its contributions, hoteliers can decide investments to enhance outcomes

    Combining abilities in green corn genotypes for yield and industrial quality traits

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    The general and specificcombining abilities and the reciprocal effects of seven hybrids and two open pollination varieties of green corn were evaluated, aiming the formation of base populations to be used as a source of superior inbred lines. For the purpose of this study, two experiments were carried out in Maringá/PR and Sabáudia/PR, during the crop season of 2014/15. The experiments were evaluated in incomplete block design alpha lattice, with three replications. The parents AM811, HTMV1, Cativerde 02 and AL Piratininga were selected based on their ĝi and the following hybrid combinations AM811 x CD316, AM811 x AG1051, AM811 x HTMV1, AM606 x Cativerde 02 and Al Piratininga x AG4051 presented the most desirable ŝij effects. Regarding the reciprocal effects, the genotype AM811 is recommended to be used as male parent in further hybrid combination

    DYNAMICS OF WOODY SPECIES IN DRY TROPICAL FOREST (CAATINGA), BRAZIL

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    Studying selected floristic changes in dry forests is fundamental to foster conservation and sustainability strategies. Objective: to analyze the occurrence of woody species in a tropical forest with a history of use. In 2008, 40 permanent plots were installed and wood with a circumference of 1.30 m at a breast height (CAP) ≥ 6 cm were measured. In 2012, newly established individuals (those that did not meet the size requirements in 2008 but did in 2012) and mortality of the remaining individuals were analyzed by computer. Where applicable, the density, frequency, and absolute dominance, importance value, newly established individuals, mortality, and gross growth for each species, along with the Shannon index were estimated. The floristic composition and diversity remain unchanged. After four years, there were few differences between species, while in most cases the growth in the basal area was positive and sometimes the number of newly established individuals exceeded the mortality. After 24 years of logging, the analyzed forest area did not reach its initial basal area stock when compared to other areas of the Caatinga that do not have a history of disturbance
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