Keywords: Autoinflammatory; IL, interleukin; PAPA, pyogenic arthritis, pyoderma gangrenosum, and acne; PASH, pyoderma gangrenosum, acne, and suppurative hidradenitis; PG, pyoderma gangrenosum; TNF, tumor necrosis factor; UC, ulcerative colitis; canakinumab; interleukin-1β; pyoderma gangrenosum.