raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:440427

Severe early-onset pulmonary alveolar proteinosis due to MARS deficiency

Synonyms: Hereditary pulmonary alveolar proteinosis with hepatic involvement · Interstitial lung and liver disease · PAP, Reunion island type · Pulmonary alveolar proteinosis, Reunion island type

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

A rare, genetic interstitial lung disease characterized by accumulation of lipoproteins in the pulmonary alveoli leading to restrictive lung disease and respiratory failure. Patients present with dyspnea, tachypnea, cough, failure to thrive, and digital clubbing. Liver disease have been described in some cases including hepatomegaly, steatosis, fibrosis or cirrhosis.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enSevere early-onset pulmonary alveolar proteinosis due to MARS deficiencyHereditary pulmonary alveolar proteinosis with hepatic involvement · Interstitial lung and liver disease · PAP, Reunion island type · Pulmonary alveolar proteinosis, Reunion island type
frProtéinose alvéolaire pulmonaire sévère par déficit en MARS à début précocePAP de l'île de La Réunion · Protéinose alvéolaire pulmonaire de l'île de La Réunion · Protéinose alvéolaire pulmonaire héréditaire avec atteinte hépatique
deSchwere früh-beginnende pulmonale Alveolarproteinose durch MARS-MangelHereditäre pulmonale Alveolarproteinose mit Leberbeteiligung · Interstitielle Lungen- und Lebererkrankung · PAP, Insel Réunion-Typ · Pulmonale Alveolarproteinose vom Réunion Insel-Typ
esProteinosis alveolar pulmonar grave por deficiencia de MARS de inicio en el adultoEnfermedad pulmonar y hepática intersticial · PAP tipo isla de Reunión · Proteinosis alveolar pulmonar hereditaria con afectación hepática · Proteinosis alveolar pulmonar tipo isla de Reunión
itProteinosi alveolare polmonare grave a esordio precoce da deficit di MARSMalattia epatica e polmonare interstiziale · PAP, tipo isola de La Réunion · Proteinosi alveolare polmonare ereditaria con coinvolgimento epatico · Proteinosi alveolare polmonare, tipo isola de La Réunion
nlErnstige vroeg beginnende pulmonale alveolaire proteïnose door MARS-deficiëntieErfelijke pulmonale alveolaire proteïnose met hepatische betrokkenheid · Interstitiële long- en leverziekte · PAP, eiland Réunion-type · Pulmonale alveolaire proteïnose, eiland Réunion-type
ptProteinose alveolar pulmonar grave com início precoce por défice de MARS
plCiężka płucna proteinoza pęcherzykowa o wczesnym pocztąku spowodowana niedoborem MARSPAP, typ wyspy Reunion · Płucna proteinoza pęcherzykowa, typ wyspy Reunion · Śródmiąższowa choroba płuc i wątroby
csTěžká plicní alveolární proteinóza s časným nástupem způsobená deficitem MARSHereditání plicní alveolární proteinóza s postižením jater · Intersticiální choroba plic a jater · PAP, Typ ostrov Reunion · Plicní alveolární proteinóza, typ ostrov Reunion
ukТяжкий ранній легеневий альвеолярний протеїноз, зумовлений дефіцитомMARSСпадковий альвеолярний протеїноз легень з ураженням печінки · Інтерстиціальні захворювання легень та печінки · PAP, острівний тип Реюньйон · Легеневий альвеолярний протеїноз, острівний тип Реюньйону
zhMARS缺乏所致严重早发性肺泡蛋白沉着症遗传性肺泡蛋白沉着症伴肝脏累及
trMARS eksikliğine bağlı ağır erken başlangıçlı pulmoner alveolar proteinozPAP, Reunion adası tipi · İnterstisyel akciğer ve karaciğer hastalığı · Pulmoner alveolar proteinoz, Reunion adası tipi · Karaciğer tutulumu ile seyreden kalıtsal pulmoner alveolar proteinoz

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM615486Evalidated
ICD-10J84.0NTBTattributedvalidated
ICD-11CB04.31NTBTattributedvalidated
MONDO0014206Evalidated
UMLSC4225400Evalidated

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

3

Classification

Preferential parent (Orphanet linearisation):

Parents in the classifications (3):

No children.

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
MARS1Disease-causing germline mutation(s) (loss of function) inAssessedHGNC:6898ENSG0000016698615656012q13.3methionyl-tRNA synthetase 124103465[PMID]_25913036[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families26 casesWorldwideCase(s)Validated25913036[PMID]_24103465[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedSource: 25913036[PMID]_24103465[PMID]_ORPHANET

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

6

HPO phenotypes

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

7

Sources for this card