raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:162516

Isolated congenital nasal pyriform aperture stenosis

Synonyms: Isolated apertura pyriformis stenosis · Isolated nasal pyriform aperture hypoplasia

Type
Malformation syndrome
Group
Disorder
Age of onset
Neonatal
Status
active

A rare otorhinolaryngological malformation characterized by narrowing of the pyriform aperture (i. e. < 8 to 10 mm in a full-term infant) due to an overgrowth of the nasal process of the maxilla, resulting in potentially lethal nasal airway obstruction in the newborn. Depending on the degree of obstruction, clinical signs and symptoms include inspiratory stridor, respiratory distress, cyanosis, sternal retraction, ribcage asymmetry, and feeding difficulties.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enIsolated congenital nasal pyriform aperture stenosisIsolated apertura pyriformis stenosis · Isolated nasal pyriform aperture hypoplasia
frSténose congénitale isolée des orifices piriformesHypoplasie des orifices piriformes
deStenose der Apertura piriformis, kongenitale, isolierte
esEstenosis aislada congénita de la apertura piriforme nasalEstenosis aislada de la apertura piriforme · Hipoplasia aislada de apertura nasal piriforme
itStenosi congenita e isolata dell'apertura piriforme del nasoIpoplasia isolata degli orifizi piriformi nasali · Stenosi isolata degli orifizi piriformi
nlGeïsoleerde congenitale nasale pyriforme openingstenoseGeïsoleerde apertura pyriformis stenosis · Geïsoleerde nasale pyriforme openinghypoplasie
ptEstenose da abertura piriforme nasal congénita, isolada
plIzolowane wrodzone zwężenie otworu gruszkowego nosaIzolowana hipoplazja otworu gruszkowego nosa · Izolowane zwężenie otworu gruszkowego nosa
csVrozená izolovaná stenóza apertura pyriformisIzolovaná stenóza apertura pyriformis · Izolovaná hypoplázie apertura pyriformis
ukІзольований вроджений стеноз піраміди носової раковиниІзольований стеноз пірамідного отвору діафрагми · Ізольована гіпоплазія носової піраміди
zh单纯性先天性鼻梨状窝狭窄孤立性鼻梨状孔发育不良
trİzole doğumsal nazal piriform açıklık stenozuİzole apertura piriformis stenozu · İzole nazal apertura piriformis hipoplazisi

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
ICD-10Q30.8NTBTattributedvalidated
ICD-11LA70.YNTBTindexvalidated
MONDO0015568Evalidated
UMLSC3839990Evalidated
MedDRA10089480Evalidated

E exact · NTBT this ORPHAcode is narrower than the target · BTNT broader than the target · ND not decided.

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Classification

Preferential parent (Orphanet linearisation):

Parents in the classifications (1):

No children.

4

Genes

0 direct

Orphanet records no gene directly on this code.

5

Prevalence and incidence

0 records

No prevalence record in this release.

6

HPO phenotypes

Orphanet has no HPO annotation for this code in this release.

7

Sources for this card