A careful history looking for the subtle symptoms of sinusitis, (as reviewed in the section on Clinical Presentation), must always be the starting point for diagnosing sinusitis. The physical ...

Aspergillus is the primary causative organism. It usually involves a single sinus, most often the maxillary sinus. [19] Presentation is typically an incidental finding on the CT scan of the head ...

"It's common, particularly during cold and flu season." That's because the roots of the upper molars are close to the maxillary sinuses, the pair of sinus cavities located behind the cheekbone.