Significance of small distal adenoma for detection of proximal neoplasms in the colorectum

Yoichi Ikeda, Masaki Mori, Mitsuhiro Miyazaki, Tsukasa Yoshizumi, Yoshihiko Maehara, Keizo Sugimachi

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)

Abstract

Background: The significance of the small distal tubular adenoma detected by sigmoidoscopy as a predictor of proximal neoplasm remains controversial. The aim of this study was to examine the prevalence of proximal neoplasms in patients with and without distal neoplasms. Methods: This is a retrospective study of 3131 asymptomatic middle-aged men who underwent total colonoscopy. For 812 men with colorectal neoplasms characteristics of the identified neoplasms were determined. Results: The prevalence of proximal neoplasms in patients with small distal tubular adenoma was 20% (92 of 461), whereas the prevalence of proximal neoplasms in patients without distal neoplasms was 11.5% (301 of 2620). The prevalence of advanced proximal neoplasms in patients with small distal tubular adenoma and without distal neoplasm was 1.3% and 0.8%, respectively. In the 29 patients with advanced proximal neoplasms, only 6 (21%) had a small distal tubular adenoma. Conclusions: The presence of small distal tubular adenomas may provide a clue to the presence of small proximal tubular adenomas. However, the majority of advanced proximal neoplasms (79%) do not have a synchronous small distal tubular adenoma.

Original languageEnglish
Pages (from-to)358-361
Number of pages4
JournalGastrointestinal endoscopy
Volume52
Issue number3
DOIs
Publication statusPublished - Jan 1 2000

All Science Journal Classification (ASJC) codes

  • Radiology Nuclear Medicine and imaging
  • Gastroenterology

Fingerprint Dive into the research topics of 'Significance of small distal adenoma for detection of proximal neoplasms in the colorectum'. Together they form a unique fingerprint.

Cite this