This case report describes a rare and unusual lesion found in a 12-year-old boy, which was diagnosed as pleomorphic adenoma of the minor salivary glands in the upper lip. The tumor was a circumscribed, submucosal nodule, about 2.0 cm in diameter and characterized by slow growth and a rubbery consistency. Complete excision was performed and the histopathological analysis showed an epithelial salivary gland tumor with islands of plasmacytoid cells, duct-like structures, in a variable stroma with chondroid, fibrous and myxoid appearance. The tumor did not recur. A brief review of the relevant literature is also presented.
Our purpose was to evaluate the therapeutic effects of a natural product (propolis) on recurrent aphthous ulceration (RAU) of the minor type regarding the number of lesions, their duration and frequency of recurrence. Seventy patients with RAU composed the study group who were examined according to pre-established criteria. Forty patients presenting with RAU (mean age 38.5 years; 25 women and 15 men) were selected and medicated during the recurrence of their lesions using a purified propolis solution in a 5%propyleneglycol vehicle. Patients applied the topical solution three times a day from the first premonitory sign of RAU appearance and also during episodes of recurrence for a period of one year. A statistically significant reduction was observed in the number, frequency and duration of the lesions (p≤ 0.01). The natural propolis product utilized in this study for RAU therapy was without any adverse effects and proved beneficial.
During the COVID-19 pandemic, political discussions in Brazil revolved around the pandemic and the controversial leader Jair Bolsonaro. Twitter reflected these discussions, also bringing reports of user dramas that had family members victimized by Covid-19. This study investigates their perception of the federal government through a quantitative and qualitative analysis of these users' tweets. We have identified 3,756 Twitter users who reported cases of family members with Covid-19 and collected their government-related tweets before and after those reports. We analyzed the feelings expressed in these tweets using automated techniques and extracted a sample of 650 tweets that had difficult-to-understand terms for a manual analysis of the feelings. The study found subtle changes in the perceptions of people who approve or disapprove of the federal government.
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