Despite the limitations of screening or early diagnosis of colorectal cancers (CRC), carcinoembryonic antigen (CEA) is frequently measured in practice and during health promotion programs. The aim of this study was to evaluate the role of colonoscopy in healthy individuals with elevated CEA levels.
Department of Internal Medicine and Institute of Gastroenterology, Yonsei University College of Medicine, and Sanggye Paik Hospital, 250 Seongsanno, Seodaemun-gu, Seoul, 120-752, Republic of Korea.
