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Table 1 Gout ultrasound elemental lesions

From: Gout. Imaging of gout: findings and utility

Double contour sign
Hyperechoic soft-tissue areas
Bright dotted foci and hyperechoic stippled aggregates
Snowstorm appearance of synovial fluid
Bone erosions
Hypervascularization: Doppler signal
Tophi, with or without posterior shadow
Soft-tissue oedema