Overview
Rheumatoid factor-negative juvenile idiopathic arthritis (JIA) without anti-nuclear antibodies is a form of childhood arthritis that begins before age 16. 'Rheumatoid factor-negative' means a specific protein marker (rheumatoid factor) is not found in the blood, and 'without anti-nuclear antibodies' means another common immune marker (ANA) is also absent. This combination helps doctors classify the type of JIA a child has, which guides treatment decisions. JIA is a broad term covering several types of long-lasting joint inflammation in children, and this particular subtype falls under what is sometimes called 'seronegative polyarticular JIA' when five or more joints are involved, or oligoarticular JIA when fewer joints are affected. The disease causes the immune system to mistakenly attack the lining of the joints, leading to swelling, pain, stiffness, and warmth in the affected joints. Children may have trouble moving in the morning or after rest. Over time, ongoing inflammation can damage joint cartilage and bone if not treated. Some children also develop eye inflammation (uveitis), which can be silent and requires regular eye check-ups. Treatment focuses on reducing inflammation, relieving pain, and protecting joints from long-term damage. Options include non-steroidal anti-inflammatory drugs (NSAIDs), disease-modifying drugs like methotrexate, and biologic therapies such as etanercept or abatacept, which are FDA-approved for use in children with JIA. With early and consistent treatment, many children can achieve low disease activity or even remission.
Also known as:
Key symptoms:
Joint swelling, especially in knees, wrists, ankles, or fingersJoint pain or tendernessMorning stiffness that improves with movementWarmth or redness around affected jointsDifficulty moving joints fullyLimping or favoring one legFatigue and low energyReduced interest in physical activityEye redness or vision changes (from uveitis)Mild fever in some casesSlowed growth or uneven limb length in long-standing disease
Multifactorial
Caused by a mix of several genes and environmental factors
Juvenile
Begins in the teen years
Treatments
No FDA-approved treatments are currently listed for OBSOLETE: Rheumatoid factor-negative juvenile idiopathic arthritis without anti-nuclear antibodies.
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Specialists
View all specialists →No specialists are currently listed for OBSOLETE: Rheumatoid factor-negative juvenile idiopathic arthritis without anti-nuclear antibodies.
Treatment Centers
8 centersBaylor College of Medicine Rare Disease Center ↗
Baylor College of Medicine
📍 Houston, TX
🏥 NORDStanford Medicine Rare Disease Center ↗
Stanford Medicine
📍 Stanford, CA
🔬 UDNNIH Clinical Center Undiagnosed Diseases Program ↗
National Institutes of Health
📍 Bethesda, MD
🔬 UDNUCLA UDN Clinical Site ↗
UCLA Health
📍 Los Angeles, CA
🔬 UDNBaylor College of Medicine UDN Clinical Site ↗
Baylor College of Medicine
📍 Houston, TX
🔬 UDNHarvard/MGH UDN Clinical Site ↗
Massachusetts General Hospital
📍 Boston, MA
🏥 NORDMayo Clinic Center for Individualized Medicine ↗
Mayo Clinic
📍 Rochester, MN
👤 Mayo Clinic Center for Individualized Medicine
🏥 NORDUCLA Rare Disease Day Program ↗
UCLA Health
📍 Los Angeles, CA
Travel Grants
No travel grants are currently matched to OBSOLETE: Rheumatoid factor-negative juvenile idiopathic arthritis without anti-nuclear antibodies.
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Caregiver Resources
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Support, advocacy, and financial assistance for caregivers of rare disease patients.
Mental Health Support
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Family & Caregiver Grants
Financial assistance programs specifically for caregivers of rare disease patients.
Social Security Disability
Learn how rare disease patients may qualify for SSDI/SSI benefits.
Questions for your doctor
Bring these to your next appointment
- Q1.How many joints are affected, and does this change my child's treatment plan?,How often does my child need eye exams, and what are we watching for?,What are the signs that the current treatment is working or not working?,What are the risks and side effects of the medications you are recommending?,Is there a chance my child will go into remission, and what does that mean for stopping treatment?,What should I do if my child develops a fever or infection while on these medications?,Are there any clinical trials or newer treatments we should consider?
Common questions about OBSOLETE: Rheumatoid factor-negative juvenile idiopathic arthritis without anti-nuclear antibodies
What is OBSOLETE: Rheumatoid factor-negative juvenile idiopathic arthritis without anti-nuclear antibodies?
Rheumatoid factor-negative juvenile idiopathic arthritis (JIA) without anti-nuclear antibodies is a form of childhood arthritis that begins before age 16. 'Rheumatoid factor-negative' means a specific protein marker (rheumatoid factor) is not found in the blood, and 'without anti-nuclear antibodies' means another common immune marker (ANA) is also absent. This combination helps doctors classify the type of JIA a child has, which guides treatment decisions. JIA is a broad term covering several types of long-lasting joint inflammation in children, and this particular subtype falls under what is
How is OBSOLETE: Rheumatoid factor-negative juvenile idiopathic arthritis without anti-nuclear antibodies inherited?
OBSOLETE: Rheumatoid factor-negative juvenile idiopathic arthritis without anti-nuclear antibodies follows a multifactorial inheritance pattern. Genetic counseling can help families understand recurrence risk and testing options.
At what age does OBSOLETE: Rheumatoid factor-negative juvenile idiopathic arthritis without anti-nuclear antibodies typically begin?
Typical onset of OBSOLETE: Rheumatoid factor-negative juvenile idiopathic arthritis without anti-nuclear antibodies is juvenile. Age of onset can vary across affected individuals.