A Case Report of Successful Management of Refractory Polyarticular Gout With Pegloticase.

Gout is inflammatory arthritis and is easily recognizable by healthcare providers by its typical clinical presentation of acute gout flare or by the presence of chronic tophaceous deposits. However, chronic gouty arthropathy can be more challenging to diagnose in some cases, especially in the absence of a previous history of gout and other characteristic findings on exam. We present a case of chronic gouty arthropathy with features mimicking rheumatoid arthritis involving multiple small joints of hands and feet and other large joints. He had high serum uric acids and a dual-energy CT (DECT) scan of the feet and ankles was obtained which showed polyarticular gout. He was started on pegloticase in view of joint erosions, and severe limitations in activity which resulted in a lowering of monosodium urate crystals and symptomatic improvement.