Dual-energy computed tomography (DECT) is a method to detect urate crystals in gouty joints. DECT uses 2 separate radiography tubes producing differing energy levels, which allows an identification of urate crystals in articular and periarticular locations1. The usefulness of DECT has been reported for a diagnosis of gouty spondyloarthritis2,3. We report 2 cases of gouty sacroiliitis evaluated by DECT. …