[Classification of fistulas and crypts found in the tissue surrounding the anorectum. Definitions of hemorrhoidal fistula, anal fistula, rectal fistula].
D005401:Fissure in Ano; D005402:Fistula; D006484:Hemorrhoids; D006801:Humans; D007420:Intestine, Large; D012003:Rectal Fistula
FISSURE IN ANO; HEMORRHOIDS; RECTAL FISTULA