raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:75566

Loeffler endocarditis

Synonyms: Eosinophilic endocarditis

Type
Disease
Group
Disorder
Age of onset
Adolescent, Adult, Childhood
Status
active

A rare restrictive cardiomyopathy characterized by hypereosinophilia and fibrous thickening of the endocardium, with usually large thrombi against the ventricle walls, that can lead to cardiovascular complications such as heart failure and thromboembolism. It manifests with symptoms like edema, fatigue and shortness of breath. It is usually secondary to eosinophil-associated tissue damage and is associated with idiopathic hypereosinophilic syndrome, chronic eosinophilic leukemia, carcinoma, or lymphoma.

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Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enLoeffler endocarditisEosinophilic endocarditis
frEndocardite de LoefflerEndocardite à éosinophiles
deLöffler-EndokarditisEndokarditis, eosinophile
esEndocarditis de LoefflerEndocarditis eosinofílica
itEndocardite di LoefflerEndocardite eosinofila
nlLoeffler-endocarditisEosinofiele endocarditis
ptEndocardite de LoefflerEndocardite eosínofílica
plZapalenie wsierdzia LoeffleraEozynofilowe zapalenie wsierdzia
csLöfflerova endokarditidaEozinofilní endokarditida
ukЕндокардит ЛеффлераЕозинофільний ендокардит
zh嗜酸细胞增多性心肌心内膜炎嗜酸性粒细胞增多性心内膜炎
trLoeffler endokarditiEozinofilik endokardit

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
ICD-10I42.3NTBTinclusionvalidated
ICD-11BC43.20NTBTindexvalidated
MONDO0019159Evalidated
UMLSC0206143Evalidated
MedDRA10052841Evalidated

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

1 record
TypeClassValueAreaQualificationValidationSource
Point prevalenceUnknown—WorldwideClass onlyNot yet validatedORPHANET

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

27 annotations · validated 2021-09-21
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0001977Abnormal thrombosis
HP:0001880Increased total eosinophil count
HP:0031323Myocardial eosinophilic infiltration
HP:0001723Restrictive cardiomyopathy
Frequent (79-30%)
HP:0031331Abnormal cardiomyocyte morphology
HP:0001654Abnormal heart valve morphology
HP:0100749Chest pain
HP:0001635Congestive heart failure
HP:0002094Dyspnea
HP:0012378Fatigue
HP:0025168Left ventricular diastolic dysfunction
HP:0001712Left ventricular hypertrophy
HP:0001962Palpitations
HP:0001824Weight loss
Occasional (29-5%)
HP:0025523Abnormal morphology of the chordae tendinae of the mitral valve
HP:0031442Abnormal tricuspid chordae tendinae morphology
HP:0011675Arrhythmia
HP:0012735Cough
HP:0006685Endocardial fibrosis
HP:0031295Left atrial enlargement
HP:0001653Mitral regurgitation
HP:0001685Myocardial fibrosis
HP:0011712Right bundle branch block
HP:0010872T-wave inversion
Very rare (<4-1%)
HP:0001659Aortic regurgitation
HP:0001650Aortic valve stenosis
HP:0001701Pericarditis

Run the differential on the 4 obligate / very frequent terms

Annotation source: 32999784[PMID]_33117933[PMID]_33129649[PMID]_30521271[PMID]

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Sources for this card