Association between TLR-2 and TLR-9 gene polymorphisms (rs5743708 and rs5743836) and susceptibility to psoriatic arthritis in Egyptian patients.

Psoriasis (PsO) is a chronic immune-mediated disease of the skin. Psoriatic arthritis (PsA) is a prevalent chronic inflammatory disease that is associated with joint destruction and disability. The presence of PsO is the single greatest risk factor for the development of PsA.

Middle east pain syndrome is a pollution-induced new disease mimicking rheumatoid arthritis.

Musculoskeletal pains are sometimes misdiagnosed in some diseases, like rheumatoid and psoriatic arthritis, erosive OA, etc. Secondary hyperparathyroidism was not considered a differential diagnosis for RA, despite the fact that it can cause arthralgia or arthritis. Also, fibromyalgia is a psychosomatic condition marked by widespread pain and tenderness.