Anal myomectomy for constipation.
D001003:Anal Canal / Q000601:surgery*; D001706:Biopsy; D002648:Child; D002675:Child, Preschool; D003248:Constipation / Q000601:surgery*; D003672:Defecation; D005242:Fecal Incontinence; D006801:Humans; D008531:Megacolon / Q000601:surgery; D009130:Muscle, Smooth / Q000601:surgery*; D012007:Rectum / Q000473:pathology