Multiple Asymptomatic Juxta-Articular Nodules Mimicking Tuberous-Xanthoma-A Unusual Presentation of Tophaceous Gout.

Asymptomatic, juxta-articular nodules are an uncommon morphology, which is usually diagnosed as xanthomas, calcinosis cutis or rheumatoid nodules. This study was represented as a case of gout, which is a disorder of purine metabolism resulting in elevation of serum uric acid and deposition of monosodium urate crystals within and around joints and manifests clinically as inflammatory arthritis. Urate crystal deposits have also been found in tendons, ligaments, viscera, and the skin, with the term "tophi" being used for the non-articular deposits. In the chronic stage, the lesion can be asymptomatic lesions and is often misdiagnosed.