Pathology of the rectal wall in solitary rectal ulcer syndrome and complete rectal prolapse.

The aetiology and pathology of rectal prolapse and solitary rectal ulcer are poorly understood.To examine the full thickness rectal wall in these two conditions.The pathological abnormalities in the surgically resected rectal wall were studied from nine patients with solitary rectal ulcer syndrome, 11 complete rectal prolapse, and nine cancer controls. Routine haematoxylin and eosin and Van Gieson staining for collagen were performed.The rectal...