Abstract
A 48-year-old man was told during a periodic health examination in 2015 that his stool was positive for occult blood, and colonoscopy was performed. Colonoscopy showed multiple polyp aggregates from the cecum to the middle of the transverse colon. Follow-up colonoscopy was scheduled, but in June 2016, the patient was evaluated as an emergency outpatient with a chief complaint of fever and persistent right abdominal pain. Colonoscopy at that time showed marked enlargement of multiple tumor-like polyps in the colonic lumen that made passage of the colonoscope through the ascending colon difficult.
Contrast abdominal CT showed large masses from the ileocecal (Bauhin's) valve to the hepatic flexure. An area of obstruction was seen, and since a malignancy with inflammation could not be ruled out, the patient was urgently admitted to the hospital. On hospital day 9, an extended right hemicolectomy was performed. Histopathology showed filiform polyposis. This case of filiform polyposis requiring resection in a patient without a history of chronic inflammatory bowel disease such as Crohn's disease or ulcerative colitis is reported, along with a review of the relevant literature.
