Abstract
Rectoanal intussusception is an invagination of the rectal wall into the lumen of
the rectum. Patients may present with constipation, incomplete evacuation, incontinence,
or may be asymptomatic. Defecography has been the gold standard for detection. Magnetic
resonance imaging defecography and dynamic anal endosonography are alternatives to
conventional defecography. However, both methods are not as sensitive as conventional
defecography. Treatment options range from conservative/medical treatment such as
biofeedback to surgical procedures such as Delorme, rectopexy, and stapled transanal
rectal resection. Recent studies conducted after a trial of failed nonoperative management
show adequate results with operations performed for rectal intussusception with or
without rectocele if other causes of constipation are not present.
Keywords
rectoanal intussusception - rectorectal intussusception - defecography - occult rectal
prolapse
