Presentation
Chronic kidney disease with hyperuricemia.
Patient Data
Dystrophic soft tissue calcifications are seen dorsal to the right talar head, around the tarsometatarsal joints and the right metatarsophalangeal joint. No erosions are seen. Utilizing dual energy gout application, the areas of perarticular calcification corresponding to monosodium urate crystal depositions (color coded green).
Case Discussion
Dual-energy CT imaging has many applications in musculoskeletal imaging (e.g. Gout, bone marrow edema detection, and metal artifact reduction). Dual energy CT has high sensitivity and specificity for gout detection reported as 78%–100% and 89%–100%, respectively 1. This useful imaging tool can aid the radiologist to early and confidently diagnose monosodium urate crystal deposition without the need of invasive techniques. It also helps to locate the gouty tophi accurately within the soft tissue and joints.
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