Recto-urethral migration of Enterobius vermicularis.
D000293:Adolescent; D000328:Adult; D004757:Enterobius / Q000502:physiology*; D006716:Homosexuality; D006801:Humans; D008297:Male; D010123:Oxyuriasis / Q000469:parasitology / Q000635:transmission*; D012007:Rectum / Q000469:parasitology*; D014521:Urethra / Q000469:parasitology*