The diagnosis of congenital mega-colon is confirmed by
a) Clinical features
b) Barium enema
c) Rectal biopsy
d) Recto-sigmoidoscopy
c. Rectal biopsy
In Hirschsprug’s disease, the migration is not complete and part of the colon lacks these nerve bodies that regulate the activity of the colon. The suction rectal biopsy is considered the current international gold standard