raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:264675

Hereditary pulmonary alveolar proteinosis

Synonyms: Congenital PAP · Congenital pulmonary alveolar proteinosis

Type
Disease
Group
Disorder
Inheritance
Autosomal recessive
Age of onset
Adolescent, Adult, Childhood, Elderly, Infancy
Status
active

A rare, genetic, interstitial lung disease due to mutations in the CSF2R (colony-stimulating factor 2 receptor) alpha or beta subunits and characterized by alveolar accumulation of pulmonary surfactant, presenting a highly variable clinical presentation, ranging from asymptomatic to severe respiratory failure. Characteristic lung biopsy findings include periodic acid-Schiff-positive, granular eosinophilic material, enlarged foamy alveolar macrophages, and well-preserved alveolar walls. The Granulocyte-macrophage colony-stimulating factor (GM-CSF) receptor function is impaired but GM-CSF receptor autoantibodies are absent.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enHereditary pulmonary alveolar proteinosisCongenital PAP · Congenital pulmonary alveolar proteinosis
frProtéinose alvéolaire pulmonaire héréditaireProtéinose alvéolaire pulmonaire congénitale · PAP congénitale
dePulmonale Alveolarproteinose, hereditäre FormAlveolarproteinose, pulmonale kongenitale · PAP, kongenitale
esProteinosis alveolar pulmonar hereditariaPAP congénita · Proteinosis alveolar pulmonar congénita
itProteinosi alveolare polmonare ereditariaPAP congenita · Proteinosi alveolare polmonare congenita
nlErfelijke pulmonale alveolaire proteïnoseCongenitale PAP · Congenitale pulmonale alveolaire proteïnose
ptProteinose congénita dos alvéolos pulmonares
plWrodzona proteinoza pęcherzyków płucnychWrodzona PAP
csDědičná plicní alveolární proteinózaVrozená PAP · Vrozená plicní alveolární proteinóza
ukСпадковий пульмонарний альвеолярний протеїнозВроджений PAP · Вроджений альвеолярний протеїноз легень
zh遗传性肺泡蛋白沉积症先天性肺泡蛋白沉积症
trKalıtsal pulmoner alveolar proteinozDoğumsal PAP · Doğumsal pulmoner alveolar proteinoz

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM300770BTNTvalidated
OMIM614370BTNTvalidated
ICD-10J84.0NTBTattributedvalidated
ICD-11CB04.31NTBTindexvalidated
MONDO0012580Evalidated
MeSHC535832Evalidated
UMLSC2931035Evalidated
GARD4582Evalidated

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 (2):

No children.

4

Genes

2 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
CSF2RADisease-causing germline mutation(s) inAssessedHGNC:2435ENSG00000198223306250Xp22.32 and Yp11.3colony stimulating factor 2 receptor subunit alpha18955570[PMID]
CSF2RBDisease-causing germline mutation(s) inAssessedHGNC:2436ENSG0000010036813898122q12.3colony stimulating factor 2 receptor subunit beta21075760[PMID]_21205713[PMID]
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Prevalence and incidence

1 record
TypeClassValueAreaQualificationValidationSource
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_20622029[PMID]

Value is Orphadata's ValMoy: the mean estimate per 100 000 for prevalence and incidence, the number of cases or families for case reports.

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HPO phenotypes

15 annotations · validated 2019-02-21
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0010876Abnormal circulating protein level
Frequent (79-30%)
HP:0025391Crazy paving pattern on pulmonary HRCT
HP:0001531Failure to thrive in infancy
HP:0012418Hypoxemia
HP:0002098Respiratory distress
HP:0004887Respiratory failure requiring assisted ventilation
HP:0002091Restrictive ventilatory defect
Occasional (29-5%)
HP:0011949Acute infectious pneumonia
HP:0030057Autoimmune antibody positivity
HP:0012735Cough
HP:0030830Crackles
HP:0031029Elevated carcinoembryonic antigen level
HP:0003651Foam cells
HP:0001649Tachycardia
HP:0002789Tachypnea

Run the differential on the 1 obligate / very frequent terms

Annotation source: 28212655[PMID]_21075760[PMID]_9410898[PMID]_18955570[PMID]_18955567[PMID]

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Sources for this card