Background and Objective: Colorectal carcinoma
i s the most common mali gnancy of the
gastrointestinal tract. It is the third common cancer
in men, the fourth common cancer in women, and
the fifth common cancer for both sex in the world.
When pati ents come to the hospi tal wi th
gastrointestinal symptoms ,frequently it is too late.
Early detection along with improvements in medical
and surgical care are thought to be responsible for
the decreasing mortality of colorectal cancer observed
in recent year. The best way to find early cancer of
colon , potential people were selected for screening
colonoscopy.
Materials and Methods: The potential people(50-70
years old and positive Fit-test)and no contraindication
for colonoscopy 822 cases were selected and
performed screening colonoscopy from December
2017 – January 2019 in Kasetwisai Hospital.
Results: There were well di fferenti ated
adenocarcinoma in 11 cases ( 2.09 %) and all were
stage II by TNM Staging whom received medical and
surgical care. Adenomatous polyp and tubulovillous
adenoma were found in 169 cases ( 21.16 % ) were
diagnosed and performed polypectomy.In this group
there were intermediate and high risk polyps (large
polyp/tubulovillous adenoma) 45 cases (4.43% ).
Others were diverticulums 61 cases (8.06%) ,colitis/
proctitis 30 cases (4.42%) , parasitic infestation 12
cases (1.16%) and hemorrhoids 3 cases (0.7%) . The
complication was colonic perforation in 2 cases
(0.24%).
Conclusion: I t i s now well accepted that the
majority of colorectal carcinoma was evolved from
adenomatous polyp; the sequence of events is adenoma – carcinoma sequence.The incidence of
invasive carcinomas increase with size (35-50% in
polyp larger than 2 cm). This study could eliminated
colorectal cancer strategies by targeting the
neoplastic polyps for removal before malignancy
develops in 169 cases (21.16 % of all the potential
people 822 cases).