Seizures in Chédiak-Higashi syndrome: case report Crises convulsivas na síndrome de Chédiak-Higashi: relato de caso

Chédiak-Higashi syndrome is a rare hematological disease characterized by increased fusion of cytoplasmatic granules. Neurological symptoms occur in approximately half of the patients. We describe the clinical, eletrophysiological, hematological and radiological findings in a girl who had Chédiak-Higashi syndrome and seizures.<br>A síndrome de Chédiak-Higashi é uma doença hematológica rara caracterizada pelo aumento da fusão dos grânulos citoplasmáticos. Manifestações neurológicas ocorrem em cerca de metade dos pacientes. Relatamos o caso de uma criança com síndrome de Chédiak-Higashi e crises convulsivas

Infiltração do sistema nervoso central e das meninges nos linfomas com representação leucemica

Os autores fazem referência a 4 pacientes com representação leucêmica no decurso de linfomas malignos que apresentaram infiltração de células neoplasicas no sistema nervoso central e meninges. É feito o estudo anatomopatoló-gico, encontrando-se em 2 deles a formação de nódulos leucêmicos no parênquima nervoso. Nos outros dois, houve regressão total de sintomatologia neurológica com o uso do metotrexate por via intratecal

Sindrome de compressão medular como manifestação inicial da doença de Hodgkin: registro de um caso

É relatado o caso de paciente com doença de Hodgkin cuja primeira manifestação clínica traduziu-se com síndrome de compressão medular. Os autores fazem comentários sobre os mecanismos invocados para justificar a compressão radiculo-medular nesta granulomatose

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