Results
203 articles were found in PubMed, 889 articles in ScienceDirect, 172 articles in BIREME and 3 articles in Scielo based on the research strategy used. Inclusion and exclusion criteria were applied, removing articles that did not meet the needs of the research, being selected 1 article from the Scielo database, 2 from BIREME and 18 articles from PubMed, totaling 16 articles on fungal ball in maxillary paranasal sinuses, sphenoid and ethmoid and 5 articles in frontal sinus. According to the PRISMA-E 2012 reporting guide, the information on stages’ review process can be found in Figure 1.