Publications by authors named "C B Silveira"

Metastases to the pituitary gland are a rare finding, with breast and lung being the most common metastases in this anatomical region. Pituitary melanoma metastases reports are thus sparse, and both diagnosis and treatment are challenging. We present the case of a 66-year-old woman with pituitary melanoma metastasis who presented with symptoms of anterior pituitary dysfunction and headache.

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Background: Anterior component separation (ACS), or Ramirez component separation technique, is an established technique still used by surgeons to repair a ventral hernia. Compared with other ventral hernia repair techniques, recent studies about ACS show more postoperative complications like wound breakdown, wound infection, hematoma, skin necrosis, seroma, and recurrence. Our study aims to compare the ACS technique with the preservation perforator technique and verify if the perforator preservation technique can decrease postoperative complications.

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Background: The proximity between people and their domestic animals with wild animal populations can result in the spread of diseases with a significant impact on public health. Infection by parasites in wildlife is considered an important bioindicator of the current state of ecosystems, and studying the epidemiology of these infections is essential for a better understanding of natural foci. However, research on parasites in southern Brazil, especially in Rio Grande do Sul (RS), is considered incipient.

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spp. is a flagellated protozoan that parasitizes the small intestine of various mammals, birds, and amphibians, being transmitted via the fecal-oral route. Giardiasis is one of the most prevalent parasitic diseases in both developed and developing countries, with a prevalence of 0,1-5% and 20-30%, respectively, and is correlated with poor hygiene practices, such as irregular handwashing, which consequently contaminates food when handled.

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Objectives: The COVID-19 pandemic has highlighted the significance of comprehending social vulnerability as a pivotal element in public health. This study investigated the perceptions and practices of a Brazilian Afro-derived community (quilombo), descendants of enslaved Africans, regarding COVID-19.

Methods: This cross-sectional study was conducted in July 2021 by administering a survey to an adult representative from each household in a Brazilian quilombola community.

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