Overview UCTD is a systemic autoimmune disease with features of connective tissue disease (CTD), but does not fulfill classification criteria for any specific CTD such as SLE, Sjögren’s syndrome, systemic…

Overview Shoulder impingement syndrome, now more commonly referred to as subacromial pain syndrome (SAPS), is one of the most frequent causes of shoulder pain. It accounts for ~40–65% of shoulder complaints in…

Overview Reactive arthritis is a seronegative spondyloarthropathy that occurs after a genitourinary or gastrointestinal infection, typically presenting as an asymmetric oligoarthritis, often with…

Overview Psoriatic arthritis (PsA) is a chronic, immune-mediated inflammatory arthritis associated with psoriasis, affecting up to 30% of patients with skin psoriasis. It commonly presents in adults aged 30–50…

Overview Pseudogout, more accurately known as calcium pyrophosphate deposition disease (CPPD), is a crystal arthropathy characterized by the deposition of calcium pyrophosphate dihydrate crystals in…

Overview Hypothyroidism is a clinical state resulting from underproduction of the thyroid hormones T4 and T3. Most cases (95%) are due to primary hypothyroidism, a failure of the thyroid gland to produce…