Conclusions
In conclusion, this study reveals a significant association of accessory
maxillary sinus ostia in superior meatus with less severe chronic
rhinosinusitis. This suggests that patients with accessory maxillary
sinus ostia in superior meatus may experience better chronic
rhinosinusitis outcomes. Additionally, most cases with accessory
maxillary sinus ostia in superior meatus are bilateral, and the
condition is considered a congenital anatomical variation. However,
further studies are required to analyse this structure in healthy
subjects and in those with chronic maxillary sinusitis to illuminate the
relationship between recurrent sinusitis and accessory maxillary sinus
ostia in superior meatus.