raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:85408

Rheumatoid factor-negative polyarticular juvenile idiopathic arthritis

Synonyms: Juvenile polyarthritis without rheumatoid factor · Juvenile rheumatoid factor-negative polyarthritis · Rheumatoid factor-negative polyarticular JIA

Type
Disease
Group
Disorder
Inheritance
Multigenic/multifactorial
Age of onset
Childhood
Status
active

A rare form of polyarticular juvenile idiopathic arthritis characterized by childhood-onset chronic arthritis of unknown cause involving five or more joints at disease onset and absence of rheumatoid factor IgM.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enRheumatoid factor-negative polyarticular juvenile idiopathic arthritisJuvenile polyarthritis without rheumatoid factor · Juvenile rheumatoid factor-negative polyarthritis · Rheumatoid factor-negative polyarticular JIA
frArthrite juvénile idiopathique polyarticulaire sans facteur rhumatoïdeAJI polyarticulaire sans facteur rhumatoïde · Polyarthrite juvénile facteur rhumatoïde négatif · Polyarthrite juvénile sans facteur rhumatoïde
deArthritis, idiopathische juvenile polyartikuläre, Rheumafaktor-negativeJuvenile Polyarthritis ohne Rheumafaktor · Polyarthritis, juvenile, Rheumafaktor-negative · Rheumafaktor-negative polyartikuläre JIA
esArtritis idiopática juvenil poliarticular factor reumatoide negativoAIJ poliarticular factor reumatoide negativo · Poliartritis juvenil factor reumatoide negativo · Poliartritis juvenil sin factor reumatoide
itArtrite idiopatica giovanile poliarticolare con fattore reumatoide negativo
nlReumafactor-negatieve polyarticulaire juveniele idiopathische artritisJuveniele polyartritis zonder reumafactor · Juveniele reumafactor-negatieve polyartritis · Reumafactor-negatieve polyarticulaire JIA
ptPoliartrite sem fator reumatóide
plMłodzieńcze zapalenie stawów z ujemnym czynnikiem reumatoidalnymZapalenie wielostawowe bez czynnika reumatoidalnego · JIA z ujemnym czynnikiem reumatoidalnym · Zapalenie wielostawowe bez czynnika reumatoidalnego · Młodzieńcze zapalenie wielostawowe bez czynnika reumatoidalnego
csJuvenilní revmatoidní faktor-negativní polyartritidaPolyartritida bez revmatoidního faktoru
ukРевматоїдний фактор-негативний поліартикулярний ювенільний ідіопатичний артритЮвенільний поліартрит без ревматоїдного фактора · Ювенільний ревматоїдний фактор-негативний поліартрит · Ревматоїдний фактор-негативний поліартикулярний ЮРА
zh类风湿因子阴性的多关节型幼年特发性关节炎类风湿因子阴性的幼年多发性关节炎
trRomatoid faktör-negatif poliartiküler jüvenil idiyopatik artritRomatoid faktör negatif poliartiküler JIA · Romatoid faktör olmaksızın jüvenil poliartrit · Jüvenil romatoid faktör-negatif poliartrit

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
ICD-10M08.3NTBTinclusionvalidated
ICD-11FA24.1NTBTindexvalidated
MONDO19432Evalidated
UMLSC3890205Evalidated
GARD3931Evalidated

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 (2):

No children.

Codes that Orphanet moved or referred to this one:

4

Genes

7 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
ANKRD55Major susceptibility factor inNot yet assessedHGNC:25681ENSG000001645126151895q11.2ankyrin repeat domain 5523603761[PMID]
CD247Major susceptibility factor inAssessedHGNC:1677ENSG000001988211867801q24.2CD247 molecule22294642[PMID]
IL2RAMajor susceptibility factor inAssessedHGNC:6008ENSG0000013446014773010p15.1interleukin 2 receptor subunit alpha22294642[PMID]
IL2RBMajor susceptibility factor inNot yet assessedHGNC:6009ENSG0000010038514671022q12.3interleukin 2 receptor subunit beta23603761[PMID]
PTPN2Major susceptibility factor inAssessedHGNC:9650ENSG0000017535417688718p11.21protein tyrosine phosphatase non-receptor type 222294642[PMID]
PTPN22Major susceptibility factor inAssessedHGNC:9652ENSG000001342426007161p13.2protein tyrosine phosphatase non-receptor type 2223603761[PMID]
STAT4Major susceptibility factor inAssessedHGNC:11365ENSG000001383786005582q32.2-q32.3signal transducer and activator of transcription 423603761[PMID]
5

Prevalence and incidence

1 record
TypeClassValueAreaQualificationValidationSource
Point prevalence1-9 / 100 0008 / 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

31 annotations · validated 2021-05-21
HPOTerm (as annotated by Orphanet)Diagnostic
Frequent (79-30%)
HP:0003019Abnormality of the wrist
HP:0001785Ankle swelling
HP:0002829Arthralgia
HP:0001369Arthritis
HP:0003565Elevated erythrocyte sedimentation rate
HP:0100686Enthesitis
HP:0001387Joint stiffness
HP:0001386Joint swelling
HP:0005086Knee osteoarthritis
HP:0005186Synovial hypertrophy
HP:0100769Synovitis
Occasional (29-5%)
HP:0001832Abnormal metatarsal morphology
HP:0011911Abnormality of metacarpophalangeal joint
HP:0003319Abnormality of the cervical spine
HP:0001155Abnormality of the hand
HP:0001384Abnormality of the hip joint
HP:0003043Abnormality of the shoulder
HP:0010754Abnormality of the temporomandibular joint
HP:0001903Anemia
HP:0003493Antinuclear antibody positivity
HP:0001371Flexion contracture
HP:0008843Hip osteoarthritis
HP:0011134Low-grade fever
HP:0002716Lymphadenopathy
HP:0001530Mild postnatal growth retardation
HP:0003326Myalgia
HP:0040313Oligoarthritis
HP:0000554Uveitis
HP:0001824Weight loss
Very rare (<4-1%)
HP:0001433Hepatosplenomegaly
HP:0001094Iridocyclitis

Annotation source: 17336654[PMID]_28418334[PMID]_32119492[PMID]

7

Sources for this card