M05.661

Clinical Causes: Genetic predisposition that affects immune system regulation Environmental factors such as smoking or exposure to certain toxins Hormonal influences, particularly in women Autoimmune response where the immune system mistakenly attacks joint tissues and other organs Chronic inflammation triggered by unidentified environmental or biological factors

Key Symptoms: Persistent joint swelling, redness, warmth, and stiffness in the right knee Decreased range of motion and joint deformity over time Fatigue and weakness Systemic symptoms such as fever and malaise Involvement of other organs like the lungs, heart, skin, or eyes, leading to additional specific symptoms such as chest pain, breathing difficulties, skin rashes, or visual disturbances

Diagnosis Path: Physical examination focusing on joint swelling, tenderness, and deformity Blood tests such as rheumatoid factor (RF), anti-cyclic citrullinated peptide (anti-CCP) antibodies, and markers of inflammation like ESR and CRP Imaging studies including X-rays, ultrasound, or MRI to assess joint damage and inflammation Additional tests, such as lung function tests or cardiac evaluations, if other organs are involved Assessment of symptoms and signs indicative of systemic involvement

Treatment Protocols: Disease-modifying antirheumatic drugs (DMARDs), such as methotrexate, to slow disease progression Biologic agents targeting specific immune pathways, such as TNF inhibitors Nonsteroidal anti-inflammatory drugs (NSAIDs) for pain relief and inflammation control Corticosteroids to reduce severe inflammation during flares Physical and occupational therapy to maintain mobility and joint function Management of affected organs through specialized treatments, such as pulmonary or cardiac therapy Lifestyle modifications, including regular exercise, smoking cessation, and balanced diet