Still’s disease, also known as systemic-onset juvenile idiopathic arthritis (SOJIA) in children or adult-onset Still’s disease (AOSD) in adults, is a rare inflammatory disorder characterized by high fevers, joint pain, and a distinctive salmon-colored rash. The condition was first described by English physician Sir George Frederic Still in 1897, hence its name.
The exact cause of Still’s disease remains unknown, but it is believed to be an autoinflammatory condition, where the immune system becomes overactive for reasons not fully understood. Some researchers suspect that genetic factors and environmental triggers, such as infections, may play a role in its development.
Symptoms of Still’s disease can vary in severity and may come and go. The most common symptoms include:
- High fever, typically spiking once or twice daily
- Salmon-pink rash that often appears during fever spikes
- Joint pain and swelling, which can be severe and affect multiple joints
- Muscle pain
- Sore throat
- Enlarged lymph nodes
- Enlarged spleen or liver
- Fatigue and general feeling of illness
Diagnosis of Still’s disease can be challenging as its symptoms mimic those of other conditions. Doctors typically rely on a combination of clinical symptoms, physical examination, and laboratory tests to make a diagnosis. Blood tests may show elevated levels of inflammatory markers, such as erythrocyte sedimentation rate (ESR) and C-reactive protein (CRP).
Treatment for Still’s disease aims to control inflammation, manage symptoms, and prevent complications. The approach may vary depending on the severity of the condition and the individual patient. Common treatments include:
- Nonsteroidal anti-inflammatory drugs (NSAIDs) for pain and fever
- Corticosteroids to reduce inflammation
- Disease-modifying antirheumatic drugs (DMARDs) like methotrexate
- Biologic drugs that target specific components of the immune system
While Still’s disease can be a chronic condition with periods of remission and flare-ups, many patients respond well to treatment and can manage their symptoms effectively. Regular follow-ups with a rheumatologist are essential for monitoring the disease progression and adjusting treatment as needed.
