Skip to
  1. Homepage
  2. Rare diseases
  3. Search
Simple search

Simple search

(*) mandatory field


Other search option(s)


Synonym(s) Nose agenesis
Prevalence <1 / 1 000 000
Inheritance Not applicable
Age of onset Neonatal
  • Q30.1
  • C0265740
  • C537438
MedDRA -


Arrhinia is an extremely rare, major congenital malformation consisting of an absence of the nose ranging from hyporrhinia (absence of external nasal structures) to total arrhinia (absence of external nose, nasal airways, olfactory bulbs, or olfactory nerve) often causing respiratory distress and requiring surgical correction. Arrhinia can be bilateral or unilateral (hemiarrhinia). Associated anomalies include ocular features (hypertelorism, microphthalmia, eyelid coloboma), facial clefts, midline defects and microtia.

(*) Required fields.

Attention: Only comments seeking to improve the quality and accuracy of information on the Orphanet website are accepted. For all other comments, please send your remarks via contact us. Only comments written in English can be processed.

Captcha image
The documents contained in this web site are presented for information purposes only. The material is in no way intended to replace professional medical care by a qualified specialist and should not be used as a basis for diagnosis or treatment.