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This study evaluates whether targeted forceps biopsy with careful tumor surface evaluation can improve diagnostic accuracy of colorectal tumors larger than 2 cm during colonoscopy.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Targeted forceps biopsy | Experimental | In this group, an endoscopist takes a forceps biopsy at depressed mucosa or large nodular area of large colorectal tumors after meticulous surface evaluation. |
|
| Conventional forceps biopsy | No Intervention | In this group, an endoscopist takes a forceps biopsy at the most convenient area of large colorectal tumors. |
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Targeted group | Diagnostic Test | Forceps biopsy is taken after surface evaluation of the large colorectal tumors. |
|
| Measure | Description | Time Frame |
|---|---|---|
| pathologic diagnosis | The pathologic diagnosis of forceps biopsy is compared with the pathologic diagnosis of resected specimen of the colorectal tumor. | 7 days |
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Inclusion Criteria:
Exclusion Criteria:
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Kyungpook National University Hospital | Recruiting | Daegu | 41944 | South Korea |
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| ID | Term |
|---|---|
| D015179 | Colorectal Neoplasms |
| ID | Term |
|---|---|
| D007414 | Intestinal Neoplasms |
| D005770 | Gastrointestinal Neoplasms |
| D004067 | Digestive System Neoplasms |
| D009371 | Neoplasms by Site |
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| D009369 | Neoplasms |
| D004066 | Digestive System Diseases |
| D005767 | Gastrointestinal Diseases |
| D003108 | Colonic Diseases |
| D007410 | Intestinal Diseases |
| D012002 | Rectal Diseases |