Fibrosis in Distal Rectum of Anorectal Malformation: A Clinicopathological Study

The distal rectum may have neuromuscular system abnormalities, which could be the causes of constipation of anorectal malformations (ARMs). This study aimed to characterize fibrosis in the distal rectum. To propose new hypotheses for the mechanism of constipation and provide histopathological evidence for the distal rectum resection during anorectoplasty.