raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:85435

Rheumatoid factor-positive polyarticular juvenile idiopathic arthritis

Synonyms: Juvenile idiopathic rheumatoid factor-positive polyarthritis · Juvenile polyarthritis with rheumatoid factor · Rheumatoid factor-positive polyarticular JIA

Type
Disease
Group
Disorder
Inheritance
Unknown
Age of onset
Childhood
Status
active

A rare form of juvenile idiopathic arthritis characterized by distal and symmetrical polyarthritis (more than 5 joints) with presence of rheumatoid factor and possible evolution towards the appearance of erosions and joint destruction.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enRheumatoid factor-positive polyarticular juvenile idiopathic arthritisJuvenile idiopathic rheumatoid factor-positive polyarthritis · Juvenile polyarthritis with rheumatoid factor · Rheumatoid factor-positive polyarticular JIA
frArthrite juvénile idiopathique polyarticulaire avec facteur rhumatoïdeAJI polyarticulaire avec facteur rhumatoïde · Arthrite juvénile polyarticulaire avec facteur rhumatoïde · Polyarthrite juvénile avec facteur rhumatoïde · Polyarthrite juvénile facteur rhumatoïde positif
deArthritis, idiopathische juvenile polyartikuläre, Rheumafaktor-positiveJuvenile Polyarthritis mit Rheumafaktor · Polyarthritis, juvenile, Rheumafaktor-positive · Rheumafaktor-positive polyartikuläre JIA
esArtritis idiopática juvenil poliarticular factor reumatoide positivoAIJ poliarticular factor reumatoide positivo · Poliartritis idiopática juvenil factor reumatoide positivo · Poliartritis juvenil con factor reumatoide
itArtrite idiopatica giovanile poliarticolare con fattore reumatoide positivo
nlReumafactor-positieve polyarticulaire juveniele idiopathische artritisJuveniele idiopathische reumafactor-positieve polyartritis · Juveniele polyartritis met reumafactor · Reumafactor-positieve polyarticulaire JIA
ptPoliartrite com fator reumatóide
plWielostawowe młodzieńcze idiopatyczne zapalenie stawów z dodatnim czynnikiem reumatoidalnymZapalenie wielostawowe z czynnikiem reumatoidalnym · JIA z dodatnim czynnikiem reumatoidalnym · Młodzieńcze zapalenie stawów z dodatnim czynnikiem reumatoidalnym
csJuvenilní revmatoidní faktor-pozitivní polyartritidaPolyartritida s revmatoidním faktorem
ukРевматоїдний фактор-позитивний поліартикулярний ювенільний ідіопатичний артритЮвенільний ідіопатичний ревматоїдний фактор-позитивний поліартрит · Ювенільний поліартрит з ревматоїдним фактором · Ревматоїдний фактор-позитивний поліартикулярний ЮРА
zh类风湿因子阳性的多关节型幼年特发性关节炎类风湿因子阳性的多关节型幼年特发性关节炎
trRomatoid faktör-pozitif poliartiküler jüvenil idiyopatik artritRomatoid faktör-pozitif poliartiküler JIA · Romatoid faktörlü jüvenil poliartrit · Jüvenil idiyopatik romatoid faktör pozitif poliartrit

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
ICD-10M08.0NTBTinclusionvalidated
ICD-11FA24.1NTBTindexvalidated
MONDO0019435Evalidated
UMLSC4048747Evalidated

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

0 direct

Orphanet records no gene directly on this code.

5

Prevalence and incidence

1 record
TypeClassValueAreaQualificationValidationSource
Point prevalence1-9 / 100 0004.2 / 100 000EuropeValue and classNot 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

19 annotations · validated 2021-05-25
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0002829Arthralgia
HP:0001369Arthritis
HP:0005764Polyarticular arthritis
HP:0002923Rheumatoid factor positive
Frequent (79-30%)
HP:0011117Abnormal circulating interleukin concentration
HP:0005930Abnormality of epiphysis morphology
HP:0002813Abnormality of limb bone morphology
HP:0011227Elevated circulating C-reactive protein concentration
HP:0003565Elevated erythrocyte sedimentation rate
HP:0006252Interphalangeal joint erosions
HP:0001386Joint swelling
HP:0001376Limitation of joint mobility
HP:0005187Progressive joint destruction
HP:0040311Symetrical distal arthritis
HP:0100769Synovitis
Occasional (29-5%)
HP:0100555Asymmetric growth
HP:0000938Osteopenia
HP:0010588Premature epimetaphyseal fusion
HP:0004349Reduced bone mineral density

Run the differential on the 4 obligate / very frequent terms

Annotation source: 32119492[PMID]_29582130[PMID]_27785924[PMID]_29426059[PMID]

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Sources for this card