05/01/2023 11:34 AM | Click to read full article
Sinusitis can be chronic or acute, and if left untreated, different pathogens, including bacteria and viruses, can block the sinus passages or cause them to fill with fluid. If sinusitis is not treated or identified, it can develop into complications, including a brain abscess and meningitis. For tests, ciliary function tests, nasal cytology, and sinus CT. In sinusitis, the mucosal membrane of the paranasal sinuses becomes irritated.