Adenoiditis may be classified according to duration of symptoms into 3 subtypes: acute adenoiditis, recurrent acute adenoiditis, and chronic/persistant adenoiditis. Adenoiditis may also be classified according to the responsible pathogen/mechanism of disease into 4 subtypes: viral adenoiditis, bacterial adenoiditis, parasitic adenoiditis, and non-infectious adenoiditis.
Adenoiditis classification
Rhinosinusitis classification
Epiglottitis classification
Laryngitis classification
Tonsillitis classification
Adenoiditis epidemiology and demographics
Mastoiditis classification
Pharyngitis classification