Epidemiological Profile of Patients with Conjuntival Tumors in a Reference Ophthalmological Hospital in Eastern Amazonia

This research aimed to report the prevalence of conjunctival tumors, and their severity between genders, age groups, and to observe the distribution of their laterality in patients of a public health service in Belém do Pará, in the Eastern Amazon, Brazil. Methods: Data were collected,at the Bettina de Souza Ferro University Hospital,in253medical records for the last 12 years (2010 to 2022),regarding conjunctival tumors were removed and examined histopathologically by the Department of Ophthalmology of the Federal University of Pará (UFPA). The incidence of tumorsundergoing excision surgery,the malignancy rate, and margins were investigated, and matched for gender, age, and laterality. Results: Subjects included161men and 92 women, with a mean age of 49.4± 47.2 years. Of these, 193 were benign tumors (76.3%), the most commonly found: 99 Pterygium; followed by 28Epidermoid Carcinomas;24Pyogenic Granulomas;20Intraepithelial Neoplasia and 18squamous papilloma. Among the 31 cases (23.7%) of malignant tumors, the number of male patients was 21 and female patients 10. Most malignant tumors were composed of squamous cell carcinoma (28 cases), followed by melanoma (3 cases). The mean age of patients with malignant tumors removed was 65.0 ± 31 years, as malignant tumors were more prevalent in older patients (chi-square,p<0.001). Conclusions: The most common conjunctival tumors were thepterygium and Epidermoid Carcinomas, more present in male patients, younger and older, respectively

Neotropical freshwater fisheries : A dataset of occurrence and abundance of freshwater fishes in the Neotropics

The Neotropical region hosts 4225 freshwater fish species, ranking first among the world's most diverse regions for freshwater fishes. Our NEOTROPICAL FRESHWATER FISHES data set is the first to produce a large-scale Neotropical freshwater fish inventory, covering the entire Neotropical region from Mexico and the Caribbean in the north to the southern limits in Argentina, Paraguay, Chile, and Uruguay. We compiled 185,787 distribution records, with unique georeferenced coordinates, for the 4225 species, represented by occurrence and abundance data. The number of species for the most numerous orders are as follows: Characiformes (1289), Siluriformes (1384), Cichliformes (354), Cyprinodontiformes (245), and Gymnotiformes (135). The most recorded species was the characid Astyanax fasciatus (4696 records). We registered 116,802 distribution records for native species, compared to 1802 distribution records for nonnative species. The main aim of the NEOTROPICAL FRESHWATER FISHES data set was to make these occurrence and abundance data accessible for international researchers to develop ecological and macroecological studies, from local to regional scales, with focal fish species, families, or orders. We anticipate that the NEOTROPICAL FRESHWATER FISHES data set will be valuable for studies on a wide range of ecological processes, such as trophic cascades, fishery pressure, the effects of habitat loss and fragmentation, and the impacts of species invasion and climate change. There are no copyright restrictions on the data, and please cite this data paper when using the data in publications