title: Coexistence of solitary rectal ulcer syndrome and ulcerative colitis: a case report and literature review.
abstract: Solitary rectal ulcer syndrome (SRUS) is an uncommon benign disease that is misdiagnosed as malignancy or inflammatory bowel disease because of similarities in clinical and endoscopic manifestations. Furthermore, SRUS with ulcerative colitis (UC) is extremely rare. To date, two cases have been reported in the medical literature. We report an additional case of SRUS with UC that was misdiagnosed as rectal cancer. A 61-year-old man was admitted to our hospital with rectal bleeding. Colonoscopy showed a well-demarcated, shallow, ulcerative lesion with polypoidal growth involving the entire circumference of the rectal lumen. Findings from imaging studies, including abdominal computed tomography (CT) and positron emission tomography (PET)/CT resembled those of rectal cancer. Surgical resection was performed because clinical symptoms persisted despite medical treatment and because occult rectal cancer could not be ruled out. Histopathological examination of the resected specimen revealed fibromuscular obliteration of the lamina propria and crypt abscesses, characteristics compatible with SRUS and UC.
authors.affiliation: Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea.
authors.forename: Hyun Bum
authors.initials: HB
authors.lastname: Park
authors.affiliation: Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea.
authors.forename: Hyung Chul
authors.initials: HC
authors.lastname: Park
authors.affiliation: Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea.
authors.forename: Cho Yun
authors.initials: CY
authors.lastname: Chung
authors.affiliation: Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea.
authors.forename: Jong Sun
authors.initials: JS
authors.lastname: Kim
authors.affiliation: Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea.
authors.forename: Dae Sung
authors.initials: DS
authors.lastname: Myung
authors.affiliation: Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea.
authors.forename: Sung Bum
authors.initials: SB
authors.lastname: Cho
authors.affiliation: Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea.
authors.forename: Wan Sik
authors.initials: WS
authors.lastname: Lee
authors.affiliation: Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea.
authors.forename: Young Eun
authors.initials: YE
authors.lastname: Joo
keywords: Rectal neoplasms; Solitary rectal ulcer syndrome; Surgery; Ulcerative colitis