The early diagnosis of cancer can facilitate subsequent clinical patient management. Artificial intelligence (AI) has been found to be promising for improving the diagnostic process. The aim of the present study is to increase the evidence on the application of AI to the early diagnosis of oral cancer through a scoping review. A search was performed in the PubMed, Web of Science, Embase and Google Scholar databases during the period from January 2000 to December 2020, referring to the early non-invasive diagnosis of oral cancer based on AI applied to screening. Only accessible full-text articles were considered. Thirty-six studies were included on the early detection of oral cancer based on images (photographs (optical imaging and enhancement technology) and cytology) with the application of AI models. These studies were characterized by their heterogeneous nature. Each publication involved a different algorithm with potential training data bias and few comparative data for AI interpretation. Artificial intelligence may play an important role in precisely predicting the development of oral cancer, though several methodological issues need to be addressed in parallel to the advances in AI techniques, in order to allow large-scale transfer of the latter to population-based detection protocols.
Geographic tongue (GT) has been described as a predictor of psoriasis. The objective of this study was to analyse the prevalence of GT in psoriatic and non‐psoriatic patients. For this purpose, we conducted a systematic review and meta‐analysis. A literature search was performed on PubMed, Embase, Web of Science and the Cochrane Database of Systematic Reviews. The search and selection process was performed according to the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta‐Analyses) criteria. Only case‐control studies were selected, and the prevalence of GT in both groups was compared. Eleven articles met the inclusion criteria, and the frequency of GT was statistically associated with psoriasis in ten studies. The pooled odds ratio (OR) was 3.53 (95% confidence interval [CI] 2.56‐4.86). There were no significant differences between the presence of GT and the clinical form. However, the Psoriasis Area and Severity Index (PASI) score was statistically higher in patients affected by GT in three of four studies. Psoriatic patients with GT also exhibited less improvement in the PASI score after treatment. One study found an association between GT and a negative impact on patients’ quality of life. Nevertheless, age, gender, toxic habits, psoriasis onset and duration of the disease were not clearly associated. The results support the concept of GT as a manifestation of psoriasis. Future research should focus on the repercussions of GT in psoriatic patients, due to the negative consequences on severity and treatment response.
The regular consumption of foods rich in iron and the use of iron supplements during pregnancy and early childhood, could favor the development of chromogenic microbiota. The prevalence of black stain did not differ significantly between non-emigrant and immigrant children in Spain.
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