4 research outputs found
Anatomia patológica da sinóvia de pacientes submetidos à liberação do túnel do carpo
OBJETIVO: Verificar se a biópsia da sinóvia do túnel do carpo é capaz de identificar patologias sistêmicas que não foram diagnosticadas clinicamente ou por exames laboratoriais. MÉTODO: 46 exames anatomopatológicos da sinóvia dos tendões flexores no túnel do carpo de pacientes submetidos à liberação aberta para o tratamento desta síndrome compressiva foram, retrospectivamente, analisados. Os autores propuseram uma nova classificação para a lesão de acordo com a intensidade do processo inflamatório. RESULTADOS: O exame anatomopatológico mostrou que 56,6% das lâminas foram classificadas como grau I (sem alterações inflamatórias), 32,6%, grau II (infiltrado leucocitário e fibrose discretos, além de hialinose), 4,3%, grau III (infiltrado leucocitário e fibrose intensos, presença de fibrina e neoformação vascular) e 6,5%, grau IV (as alterações acima descritas associadas à presença de calcificação local e células gigantes). Dois pacientes com amiloidose foram classificados como graus I e II e não foram encontrados depósitos de material amilóide em suas lâminas. Dois pacientes portadores de hiperparatireoidismo e outro com insuficiência renal crônica foram classificados como grau IV. CONCLUSÃO: A realização da biópsia da sinóvia do túnel do carpo, além de agregar custos adicionais ao procedimento, não possibilitou o diagnóstico precoce de doenças sistêmicas em pacientes portadores de síndrome do túnel do carpo
NEOTROPICAL XENARTHRANS: a data set of occurrence of xenarthran species in the Neotropics
Xenarthrans—anteaters, sloths, and armadillos—have essential functions for ecosystem maintenance, such as insect control and nutrient cycling, playing key roles as ecosystem engineers. Because of habitat loss and fragmentation, hunting pressure, and conflicts with domestic dogs, these species have been threatened locally, regionally, or even across their full distribution ranges. The Neotropics harbor 21 species of armadillos, 10 anteaters, and 6 sloths. Our data set includes the families Chlamyphoridae (13), Dasypodidae (7), Myrmecophagidae (3), Bradypodidae (4), and Megalonychidae (2). We have no occurrence data on Dasypus pilosus (Dasypodidae). Regarding Cyclopedidae, until recently, only one species was recognized, but new genetic studies have revealed that the group is represented by seven species. In this data paper, we compiled a total of 42,528 records of 31 species, represented by occurrence and quantitative data, totaling 24,847 unique georeferenced records. The geographic range is from the southern United States, Mexico, and Caribbean countries at the northern portion of the Neotropics, to the austral distribution in Argentina, Paraguay, Chile, and Uruguay. Regarding anteaters, Myrmecophaga tridactyla has the most records (n = 5,941), and Cyclopes sp. have the fewest (n = 240). The armadillo species with the most data is Dasypus novemcinctus (n = 11,588), and the fewest data are recorded for Calyptophractus retusus (n = 33). With regard to sloth species, Bradypus variegatus has the most records (n = 962), and Bradypus pygmaeus has the fewest (n = 12). Our main objective with Neotropical Xenarthrans is to make occurrence and quantitative data available to facilitate more ecological research, particularly if we integrate the xenarthran data with other data sets of Neotropical Series that will become available very soon (i.e., Neotropical Carnivores, Neotropical Invasive Mammals, and Neotropical Hunters and Dogs). Therefore, studies on trophic cascades, hunting pressure, habitat loss, fragmentation effects, species invasion, and climate change effects will be possible with the Neotropical Xenarthrans data set. Please cite this data paper when using its data in publications. We also request that researchers and teachers inform us of how they are using these data