The distribution of human rectal aberrant crypt foci and criteria for defining the counting area.

Abstract:

:Aberrant crypt foci (ACF) are considered as a useful surrogate biomarker for colorectal cancer, although their biological significance still remains controversial. We conducted this study to clarify whether differences in the ACF counting area might have led to the discrepancies in the ACF counts among previous reports. A endoscopist proficient in ACF counting performed high-magnification chromoscopic colonoscopy in 45 subjects and investigated the distribution of ACF in four bowel segments (middle Houston valve to the dentate line and distal rectum 0-5, 5-10 and 10-15 cm). We also investigated whether the patient physique might affect the distance from the middle Houston valve to the dentate line. The prevalence of ACF was 84% and most of the ACF (170/210, 81%) were located in the bowel segment from the middle Houston valve to the dentate line. The number of ACF was significantly correlated with the bowel segment in which the counting was performed: Dentate line to the middle Houston valve and distal rectum within 0-15 cm (r=0.94, P<0.001). The patient physique did not affect the distance from the middle Houston valve to the dentate line. In conclusion, the definition of the ACF counting area may not affect the results of ACF counting.

journal_name

Oncol Lett

journal_title

Oncology letters

authors

Fujii T,Sakai E,Takahashi H,Yamada E,Ohkubo H,Higurashi T,Nakajima A

doi

10.3892/ol.2017.6003

subject

Has Abstract

pub_date

2017-06-01 00:00:00

pages

4501-4504

issue

6

eissn

1792-1074

issn

1792-1082

pii

OL-0-0-6003

journal_volume

13

pub_type

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