A differential diagnosis of Still's Disease is a set of conditions that are used to differentiate between various illnesses, such as rheumatoid arthritis, systemic lupus erythematosus, juvenile idiopathic arthritis, and other autoimmune conditions. In order to make a diagnosis, the doctor will consider a variety of factors, such as the patient's signs and symptoms, their medical history, and any laboratory or imaging tests that have been performed.
The main symptom of Still's Disease is a high spiking fever, usually accompanied by joint pain and swelling, fatigue, and a distinctive rash. Other symptoms may include a sore throat, enlarged lymph nodes, weight loss, chest pain, and an enlarged liver or spleen.
In order to diagnose Still's Disease, a doctor will likely evaluate the patient's medical history, perform a physical exam, and order laboratory tests to rule out other autoimmune diseases. A rheumatoid factor test, an erythrocyte sedimentation rate (ESR) test, and a C-reactive protein (CRP) test may be performed. Imaging tests such as an X-ray or MRI may also be useful in diagnosing the disease.
In some cases, a doctor may also order a biopsy of the affected tissue in order to confirm the diagnosis.
Once the diagnosis is confirmed, the doctor will work with the patient to develop a treatment plan that is tailored to their individual needs. Treatment may include medications such as corticosteroids or disease modifying anti-rheumatic drugs (DMARDs), physical therapy, and lifestyle modifications. In some cases, surgery may be necessary.