| Disease ID | Source | Name | Description |
| 618795 | OMIM | Juvenile arthritis (JUVAR) | A rare, familial form of juvenile arthritis characterized by autosomal recessive inheritance and onset in early childhood of symmetric, chronic joint inflammation. It causes joint swelling, pain, stiffness and restricted joint movement. JUVAR has high clinical variability. Some patients exhibit systemic symptoms, including quotidian fever, erythematous rash, generalized lymphadenopathy, hepatomegaly, and/or splenomegaly. Others display polyarthritis without systemic inflammation. The disease is caused by variants affecting the gene represented in this entry. |
| 604302 | OMIM | Rheumatoid arthritis systemic juvenile (RASJ) | An inflammatory articular disorder with systemic onset beginning before the age of 16. It represents a subgroup of juvenile arthritis associated with severe extraarticular features and occasionally fatal complications. During active phases of the disorder, patients display a typical daily spiking fever, an evanescent macular rash, lymphadenopathy, hepatosplenomegaly, serositis, myalgia and arthritis. |