Dynamic assessment of the double contour sign by ultrasonography helps to distinguish between gout and calcium pyrophosphate deposition disease.
Edoardo CipollettaAbhishek AbhishekAndrea Di MatteoWalter GrassiEmilio FilippucciPublished in: RMD open (2023)
The dynamic US assessment of the DC sign may help to differentiate the DC sign due to MSU crystals from the pseudo DC sign seen in CPPD, as they move in opposite directions.