Colorectal polyps in an Australian population. A histological and immunohistochemical study
作者:
Norman R. Hughes,
Ronald C. Newland,
期刊:
The Journal of Pathology
(WILEY Available online 1990)
卷期:
Volume 160,
issue 1
页码: 41-50
ISSN:0022-3417
年代: 1990
DOI:10.1002/path.1711600110
出版商: John Wiley&Sons, Ltd.
关键词: Colorectal;polyps;histology;immunohistochemistry
数据来源: WILEY
摘要:
AbstractThe histology and immunohistochemistry of 896 polyps and other focal epithelial abnormalities detected macroscopically in 86 surgical resections from patients with colorectal adenocarcinoma and benign bowel disorders were studied. The lesions identified included 177 adenomas, 387 hyperplastic (metaplastic) polyps, and 202 non‐neoplastic polyps designated ‘focal cryptal hyperplasia’. Numbers of both neoplastic and non‐neoplastic polyps were significantly increased in resections for carcinoma, with 72 per cent of all polyps in right and 10 per cent in left hemicolectomy specimens being neoplastic. Thirty per cent of adenomas were less than 2 mm in diameter and 6 per cent larger than 10mm. Observations on polyp size, number, distribution, histological appearance, and antigenic composition suggested that focal cryptal hyperplasia evolves into the hyperplastic polyp. In doing so, there is loss of expression of a tissue specific antigen. Hyperplastic polyps were significantly larger in colons with adenoma than in those
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