title: Bannayan Ruvalcaba Riley Syndrome.
abstract: A 63-year-old male with history of prostate cancer treated with radiation presented for a colonoscopy for small volume hematochezia. The colonoscopy revealed numerous polyps, which were found to be ganglioneuromas on histological examination. He was referred to medical genetics with suspicion for hamartomatous polyposis syndrome and was found to have a mutation in the PTEN gene. Based on this and suggestive clinical findings, he was diagnosed with Bannayan Ruvalcaba Riley syndrome.
authors.affiliation: Department of Medicine, Division of Gastroenterology, Indiana University School of Medicine, Indianapolis, IN.
authors.forename: Sashidhar V
authors.initials: SV
authors.lastname: Sagi
authors.affiliation: Department of Medicine, Division of Gastroenterology, Indiana University School of Medicine, Indianapolis, IN.
authors.forename: Darren D
authors.initials: DD
authors.lastname: Ballard
authors.affiliation: Department of Pathology, Richard L. Roudebush Veterans Affairs Medical Center, Indianapolis, IN.
authors.forename: Rebecca A
authors.initials: RA
authors.lastname: Marks
authors.affiliation: Genomic Medicine Service, Salt Lake City VAMC, Salt Lake City, UT.
authors.forename: Katie R
authors.initials: KR
authors.lastname: Dunn
authors.affiliation: Department of Medicine, Division of Gastroenterology, Indiana University School of Medicine, Indianapolis, IN ; Medicine Service, Gastroenterology Section, Richard L. Roudebush Veterans Affairs Medical Center, Indianapolis, IN.
authors.forename: Charles J
authors.initials: CJ
authors.lastname: Kahi