Imaging Findings in Calcium Pyrophosphate Dihydrate Crystal Deposition Disease

Purpose or Learning Objective: (1) To understand the diagnostic patterns for the radiographic diagnosis of calcium pyrophosphate crystal deposition disease (CPPD); (2) to become familiar with other conventional imaging techniques used to diagnose CPPD crystal deposition disease, and (3) to demonstrate the appearance of this disorder using ultrasonography (US), computed tomography, and dual-energy computed tomography (DECT).