raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:314950

Primary hypereosinophilic syndrome

Synonyms: Clonal hypereosinophilic syndrome · HES-M · HES-N · Neoplastic hypereosinophilic syndrome · Primary HES

Type
Disease
Group
Disorder
Age of onset
All ages
Status
active

A rare hypereosinophilic syndrome characterized by hypereosinophilia produced by clonal eosinophils derived from neoplastic stem cells in the absence of any secondary cause of eosinophilia and persisting for at least six months. The condition is associated with signs of organ infiltration, dysfunction, and damage. Clinical manifestations are highly variable, depending on the organ systems involved, and include dermatologic, pulmonary, cardiac, gastrointestinal, and cerebral manifestations, among others.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enPrimary hypereosinophilic syndromeClonal hypereosinophilic syndrome · HES-M · HES-N · Neoplastic hypereosinophilic syndrome · Primary HES
frSyndrome hyperéosinophilique primitifSHE-M · SHE-N · Syndrome hyperéosinophilique clonal · Syndrome hyperéosinophilique néoplasique
deHypereosinophiles Syndrom, primäresHES, primäres · HES-M · HESN · Hypereosinophiles Syndrom, klonales · Hypereosinophiles Syndrom, neoplastisches
esSíndrome hipereosinofílico primarioHES primario · HES-M · HESN · Síndrome hipereosinofílico clonal · Síndrome hipereosinofílico neoplásico
itSindrome ipereosinofila primitivaHES primitiva · HES-M · HESN · Sindrome ipereosinofila clonale · Sindrome ipereosinofila neoplastica
nlPrimair hypereosinofiel syndroomHES-M · HESN · Klonaal hypereosinofiel syndroom · Neoplastisch hypereosinofiel syndroom · Primaire HES
ptSíndrome hipereosinofílica primáriaSíndrome hipereosinofílica clonal · Síndrome hipereosinofílica neoplásica · HES primária · HES-M · HESN
plPierwotny zespół hipereozynofilowyHES-M · HES-N · Klonalny zespół hipereozynofilowy · Neoplastyczny zespół hipereozynofilowy · Pierwotny HES
csPrimární hypereozinofilní syndromKlonální hypereozinofilní syndrom · HES-M · HES-N · Neoplastický hypereozinofilní syndrom · Primární HES
ukПервинний гіпереозинофільний синдромКлональний гіпереозинофільний синдром · HES-M · HES-N · Неопластичний гіпереозинофільний синдром · Первинна HES
zh原发性嗜酸性粒细胞增多综合征肿瘤性嗜酸性粒细胞增多综合征
trPrimer hipereozinofilik sendromHES-M · HES-N · Primer HES · Klonal hipereozinofilik sendrom · Neoplastik hipereozinofilik sendrom

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
ICD-10D47.5NTBTattributedvalidated
MONDO0017833Evalidated
UMLSC5679898Evalidated

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 (1):

No children.

4

Genes

5 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
ETV6Part of a fusion gene inAssessedHGNC:3495ENSG0000013908360061812p13.2ETS variant transcription factor 622460074[PMID]_24577808[PMID]
FGFR1Part of a fusion gene inAssessedHGNC:3688ENSG000000777821363508p11.23fibroblast growth factor receptor 122460074[PMID]_24577808[PMID]
FIP1L1Part of a fusion gene inAssessedHGNC:19124ENSG000001452166076864q12factor interacting with PAPOLA and CPSF122460074[PMID]_24577808[PMID]
PDGFRAPart of a fusion gene inAssessedHGNC:8803ENSG000001348531734904q12platelet derived growth factor receptor alpha22460074[PMID]_24577808[PMID]
PDGFRBPart of a fusion gene inAssessedHGNC:8804ENSG000001137211734105q32platelet derived growth factor receptor beta22460074[PMID]_24577808[PMID]
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.

6

HPO phenotypes

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

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Sources for this card