background: routine screening colonoscopy is on the rise and pathologists have to deal with the ever larger numbers of excised colonic polyps. it is very important to optimize the patients’ individual treatment and further surveillance. pathologists play a critical role in management, as most of the clinical decisions concerning colonic polyp management are based on pathologic findings. one of ...

Pseudoinvasion or pseudocarcinomatous invasion in an adenomatous polyp of the colon can be unfamiliar to an endoscopist. Pseudoinvasion in an adenomatous polyp represents prolapse of the adenomatous epithelium into its stalk. In most cases its morphology does not differ from of general adenomatous polyps, but in some cases it can morphologically mimic a malignant polyp with submucosal invasion ...

colorectal cancer is the second leading cause of cancer death worldwide. through risk assessment of malignancy in polyps, screening programs can achieve the best results. this study aimed to determine the association between the grade of dysplasia and the location of colorectal polyps. 240 colorectal adenomatous polyps which were referred to department of pathology at rasoul-e-akram hospital be...

background: the association between adenomatous polyps and malignancy has an important role in patient screening and follow up after polypectomy. due to less attraction towards the segmental resection, colonoscopic evaluation of malignancy has found its utmost importance role. polyp size and morphology have dictated the potential of malignancy in prior studies, however, in recent decade some au...

Colon cancer is the third leading class of cancer causing increased mortality in developed countries. A polyp is one type of lesion observed in a majority of colon cancer patients. Here, we report a microscopic Fourier transform infrared (FTIR) study of normal, adenomatous polyp and malignant cells from biopsies of 24 patients. The goal of our study was to differentiate an adenomatous polyp fro...

Prospective investigation has been undertaken with the aim to study the frequency, location and age and sex distribution of various histological types of benign gastric epithelial polyps. Histological type--adenomatous, hyperplastic and fundic gland polyps--was diagnosed on the basis of at least three histological samples taken from the polyp. Biopsy samples were also taken from the antrum and ...

Previous studies on life style for colorectal cancer risk suggest that serum lipids and glucose might be related to adenomatous polyps as well as to colorectal carcinogenesis. This case-control study was conducted to investigate the associations between serum lipids, blood glucose, and other factors and the risk of colorectal adenomatous polyp. Male cases with colorectal adenomatous polyp, hist...

Adenomatous polyps are known precursor lesions for colorectal cancer and some hyperplastic polyps also have malignant potential. The use of aspirin and nonsteroidal anti-inflammatory drugs (NSAID) is associated with a reduced risk of adenomatous polyps; however, less evidence exists with regard to NSAID use and hyperplastic polyp risk. We conducted a colonoscopy-based case-control study includi...

Colorectal polyp may be defined as growth of tissue on the lining of colon and rectum. It is assumed that adenomatous polyp is the most potent precursor of colorectal cancer [1]. Consequently colonoscopic polypectomy can reduce risk of colorectal cancer [2]. All polyps are not cancerous nonetheless large number of colon cancers grow as a consequence of adenomatous polyp [3]. Though colorectal c...