Anal fistula with extension to the thigh.
D001003:Anal Canal; D003092:Colitis; D003093:Colitis, Ulcerative / Q000150:complications*; D005402:Fistula; D006801:Humans; D012003:Rectal Fistula; D013848:Thigh
ANUS/fistula; COLITIS, ULCERATIVE/complications; FISTULA