Table 1. 2015 Gout Classification Criteria: An American College of Rheumatology/European League Against Rheumatism Collaborative Initiative.

MTP1: the first metacarpophalangeal joint, US: ultrasonography, DCS: double contour sign DECT: dual-energy computed tomography, MSU: monosodium urate.

Modified from the article of Kim HS and Kim HR (Korean J Med 2016;91:32-36)³⁷⁾.