Tests to detect functional megarectum / rectal dilatation:
- X-ray Abdomen – may show dilated rectum with fecal loading
- Contrast enema (Barium enema) – shows rectal dilatation / megarectum
- Anorectal manometry – assesses rectal sensation & sphincter function
- MRI Defecography – evaluates rectal emptying & pelvic floor function
- Rectal biopsy (if needed) – to rule out Hirschsprung disease
Answered2026-03-16 06:56:03
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