raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:329967

Intermittent hydrarthrosis

Type
Disease
Group
Disorder
Age of onset
Adult
Status
active

A rare rheumatologic disease characterized by recurrent self-remitting episodes of acute monoarticular arthritis, often with a fixed periodicity, typically affecting the knee or another large joint, which develops an effusion over 12 to 24 hours with only mild to moderate pain and minimal signs of inflammation. Attacks last three to five days and may parallel menses in females. Systemic symptoms are absent, and no joint damage occurs.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enIntermittent hydrarthrosis
frHydarthrose intermittente
deHydarthrose, intermittierende
esHidrartrosis intermitente
itIdrartrosi intermittente
nlIntermitterende hydrartrose
ptHidrartrose intermitente
plNawracające wysiękowe zapalenie stawu
csIntermitentní hydrartróza
ukІнтермітуючий гідроартроз
zh间歇性关节炎
trİntermittent hidrartroz

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
ICD-10M12.4Especificvalidated
ICD-11FA27.4Especificvalidated
MONDO0018015Evalidated
UMLSC0149910Evalidated

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

2 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
MEFVCandidate gene tested inNot yet assessedHGNC:6998ENSG0000010331360810716p13.3MEFV innate immunity regulator, pyrin16802374[PMID]
TNFRSF1ACandidate gene tested inNot yet assessedHGNC:11916ENSG0000006718219119012p13.31TNF receptor superfamily member 1A22887853[PMID]
5

Prevalence and incidence

1 record
TypeClassValueAreaQualificationValidationSource
Point prevalenceUnknown—WorldwideClass onlyValidatedORPHANET

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

5 annotations · validated 2021-05-05
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0001386Joint swelling
Frequent (79-30%)
HP:0002815Abnormality of the knee
Occasional (29-5%)
HP:0002829Arthralgia
HP:0045086Knee joint hypermobility
Very rare (<4-1%)
HP:0000934Chondrocalcinosis

Run the differential on the 1 obligate / very frequent terms

Annotation source: 15454124[PMID]_16802374[PMID]_17889261[PMID]

7

Sources for this card