In a patient with hypertrophied adenoids, the voice abnormality that is seen is -
Rhinolalia clausa is lack of nasal resonance (hyponasality).
It is seen in conditions which block the nose or nasopharynx. So will be see in case of allergic rhinitis, adenoids and nasal polpys.
Palatal paralysis will lead to hypernasality and not hyponasality
Rhinolalia clausa
Rhinolalia aperta
Hot potato voice
Scatacto voice