Chromoblastomycosis is a chronic subcutaneous mycotic infection caused by dematiaceous saprophytic moulds. The most frequently isolated agent is Fonsecae pedrosoi. This article reports a case of a man from the Amazon region in Northern Brazil who presented with a lesion of 12 months' duration, which gradually increased in size until covering the majority of his right leg.
View Article and Find Full Text PDFSebaceous adenocarcinoma is a rare adnexal tumor that can affect the skin and is divided into ocular, a more common form and extra ocular, of a rarer occurrence. We report the case of a patient diagnosed with Acquired Immune Deficiency Syndrome (AIDS) who developed an extra ocular, bulky and fast-growing sebaceous adenocarcinoma on the face. The literature has suggested that transplanted patients and HIV-positive patients have an excess risk for developing adnexal tumors, including sebaceous adenocarcinoma.
View Article and Find Full Text PDFUnlabelled: The hypothalamic-pituitary-adrenal and sympathetic-adrenomedullary axes are the main systems activated in response to stress. Alterations in salivary components and flow rate have been associated with oral health problems and psychological stress.
Objectives: The aim of the present study was to investigate the influence of psychological stress on salivary flow, total protein concentration and IgG, IgM and IgA concentrations.
Total leukocytes, NK cells, B and T lymphocytes present in the saliva of medical students with or without stress were quantified by flow cytometry in 10,000 events. The symptoms of psychological stress were monitored with Lipp's Inventory of Stress Symptoms for Adults (ISSL). No significant differences were observed in the number of cells phenotyped in students with and those without psychological stress.
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