Colon Polyps

Correlation of gut microbiota composition with colon adenomatous polyps

Microbiota is a collection of microorganisms that live in the oral cavity, respiratory tract and intestine of multicellular organisms. Microbiota exerts numerous physiological and pathological effects on the organism in which it resides. Increasing attention has been directed to the host-microbiota interaction, which is highly relevant to the development of carcinogenesis. Changes in the compos...

Serrated polyps of the colon

Until recently, colonic polyps were traditionally classified as either hyperplastic or adenomatous, and only the latter were believed to have the potential to progress to carcinoma. However, it is now appreciated that a subset of serrated polyps also appear to have malignant potential. Serrated polyps are a heterogeneous group of colon polyps that include hyperplastic polyps, sessile serrated a...

Polyps of the colon and rectum.

Endoscopic Management of Nonlifting Colon Polyps

Background and Study Aims. The nonlifting polyp sign of invasive colon cancer is considered highly sensitive and specific for cancer extending beyond the mid-submucosa. However, prior interventions can cause adenomas to become nonlifting due to fibrosis. It is unclear whether nonlifting adenomas can be successfully treated endoscopically. The aim of this study was to evaluate outcomes in a refe...

Update on Problem Polyps in the Colon

The majority of polyps in the colon are hyperplastic polyps, adenomas, and inflammatory polyps (Table 1). Pathologists usually receive material in the form of biopsies or endoscopic polypectomy specimens. The role of the pathologist is to establish a diagnosis, or at least to be able to put it into one of the general polyp categories, and to determine whether the lesion has been adequately exci...