Purpose: The study contained herein was undertaken to report the case of a patient with juvenile polyposis in whom multiple and rapid recurrence of mixed polyps, with progressive predominance of the adenomatous component, developed in a diverted ileoanal pouch.
Methods: The case of this patient with juvenile polyposis was reviewed. Despite regular surveillance and polypectomies, extensive and multiple recurrences of serrated polyps developed.
Results: Because the pouch was never cleared of polyps, a compromise to remove the pouch was decided on. Such a case has not been reported previously.
Conclusion: Mixed juvenile polyposis may affect any level of the gastrointestinal tract. The ileal pouch and any rectal remnant may incidentally need surgical excision.
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