title: A Case of Cap Polyposis with Epidermal Nevus in an Infant.
abstract: Cap polyposis is extremely rare in children. We report a case of an 11-month-old male infant who visited our hospital because of rectal prolapse and small amount of hematochezia lasting several days. He also had an epidermal nevus in the sacral area. Colonoscopy showed erythematous, multilobulated, circumferential, polypoid lesions with mucoid discharge from the rectum. He was diagnosed with cap polyposis by endoscopy and histologic examination. He was treated with surgical resection, and was closely followed up. In the relevant literature, there is no report of cap polyposis in an infant. We report the first case of cap polyposis in the youngest infant.
authors.affiliation: Department of Pediatrics, Chonbuk National University Medical School, Chonbuk National University Hospital, Jeonju, Korea.|Research Institute of Clinical Medicine-Biomedical Research Institute, Chonbuk National University Hospital, Jeonju, Korea.
authors.forename: Soon Chul
authors.identifier: http://orcid.org/0000-0002-5947-4599
authors.initials: SC
authors.lastname: Kim
authors.affiliation: Department of Pathology, Chonbuk National University Medical School, Chonbuk National University Hospital, Jeonju, Korea.
authors.forename: Myoung Jae
authors.identifier: http://orcid.org/0000-0003-3662-0693
authors.initials: MJ
authors.lastname: Kang
authors.affiliation: Division of Pediatric Surgery, Chonbuk National University Medical School, Chonbuk National University Hospital, Jeonju, Korea.
authors.forename: Yeon Jun
authors.identifier: http://orcid.org/0000-0001-6635-4627
authors.initials: YJ
authors.lastname: Jeong
authors.affiliation: Department of Pediatrics, Chonbuk National University Medical School, Chonbuk National University Hospital, Jeonju, Korea.|Research Institute of Clinical Medicine-Biomedical Research Institute, Chonbuk National University Hospital, Jeonju, Korea. hwaph@jbnu.ac.kr.
authors.forename: Pyoung Han
authors.identifier: http://orcid.org/0000-0003-0108-0922
authors.initials: PH
authors.lastname: Hwang
mesh_terms: D000894:Anti-Inflammatory Agents, Non-Steroidal / Q000627:therapeutic use; D003111:Colonic Polyps / Q000473:pathology; D003113:Colonoscopy; D006801:Humans; D007223:Infant; D008297:Male; D019804:Mesalamine / Q000627:therapeutic use; D009506:Nevus / Q000473:pathology; D011127:Polyps / Q000150:complications / Q000175:diagnosis* / Q000601:surgery; D012002:Rectal Diseases / Q000150:complications / Q000175:diagnosis* / Q000601:surgery; D012007:Rectum / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed
chemical_list: D000894:Anti-Inflammatory Agents, Non-Steroidal; D019804:Mesalamine
keywords: Cap Polyposis; Epidermal Nevus; Hematochezia