Prevalence and Characteristics of Nonpolypoid Colorectal Neoplasms - A Chinese Cohort Study
This study has been completed.
Information provided by (Responsible Party):
Xiaobo Li, Shanghai Jiao Tong University School of Medicine
First received: February 11, 2012
Last updated: February 14, 2012
Last verified: February 2012
The nonpolypoid colorectal neoplasms (NP-CRNs) are relatively common in patients with gastrointestinal alarm systoms. The depressed lesions have a greater risk of having cancer than flat and polypoid lesions.
Nonpolypoid Colorectal Neoplasms(NP-CRN)
||Observational Model: Cohort
Time Perspective: Prospective
||Prevalence and Characteristics of Nonpolypoid Colorectal Neoplasms - A Chinese Cohort Study
Biospecimen Retention: Samples Without DNA
All the lesions will be removed endoscopically or surgically and examined histologically by an independent gastrointestinal pathologist.
Histological diagnosis is determined according to the World Health Organization (WHO) criteria.Pedunculated lesions are categorized according to Haggitt's classification.
| Study Start Date:
| Study Completion Date:
| Primary Completion Date:
||December 2010 (Final data collection date for primary outcome measure)
|Ages Eligible for Study:
||18 Years to 90 Years (Adult, Senior)
|Sexes Eligible for Study:
|Accepts Healthy Volunteers:
consecutive adult patients undergo colonoscopy by one endoscopist from Jan 2009 to Dec 2010
- consecutive adult patients undergo colonoscopy by one endoscopist
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No Contacts or Locations Provided
||Xiaobo Li, Shanghai Institute of Digestive Disease，Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Jiao Tong University School of Medicine
History of Changes
|Other Study ID Numbers:
|Study First Received:
||February 11, 2012
||February 14, 2012
Keywords provided by Shanghai Jiao Tong University School of Medicine:
nonpolypoid colorectal neoplasms(NP-CRN)
Additional relevant MeSH terms:
ClinicalTrials.gov processed this record on January 19, 2017
Digestive System Neoplasms
Neoplasms by Site
Digestive System Diseases