It has to do, I think, with the molecular Allergic rhinitis has never been able to be proved as a causative factor in rhinosinusitis in adults and the correlation is thin in children but it has been shown. A big issue in children. Deviated nasal septum. If it s bad enough can be a Immune deficiency. You see a patient under the age of 14 that has nasal polyps, always get a sweat chloride test.
Polyps are very rare in children.
Again, this is relatively rare. If you do have patients that have this, we actually end up doing a little I put this up is because what this diagram shows is the prevalence of both allergic symptoms and sinus symptoms. The pathophysiology of sinusitis. Basically it has four stages. The inciting stage, whatever it was.