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Endoscopic diagnosis of colo rectal villous adenoma



Endoscopic diagnosis of colo rectal villous adenoma



Japanese Journal of Clinical Oncology 10(1): 75-82



Villous adenoma or adenoma with a predominant villous component [in human] showed a characteristic finding on macroscopic or endoscopic observation. The fundamental elements of this finding were reddish sulcus and whitish ramified relief similar to the villous pattern normally seen on the mucosa of the small bowel. This feature was labeled V (villous) pattern. A comparative study of the endoscopy and pathology of 70 polypoid lesions of the large intestine was conducted. The frequency of the V pattern in the endoscopic picture increased in proportion to the population of the villous component in histological picture of the polypoid lesions. Even in small polyps the V pattern could be observed when the lesion had a villous component. Careful and close endoscopic observation may allow the diagnosis of villous component (which means a high frequency of malignancy) of the colorectal polyp even without biopsy.

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Accession: 005359171

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