نتایج جستجو برای: colonic polyps
تعداد نتایج: 35517 فیلتر نتایج به سال:
In this study, an automatic three-dimensional computer-aided detection system for colonic polyps was developed. Computer-aided detection for computed tomography colonography aims at facilitating the detection of colonic polyps. First, the colon regions of whole computed tomography images were carefully segmented to reduce computational burden and prevent false positive detection. In this proces...
Breast cancer metastasis to the gastrointestinal tract is relatively rare and is generally found when patients complain of symptoms such as gastrointestinal obstruction. Herein, we report a case with metastatic colonic and gastric lesions from breast cancer, with the formation of mucosal polyps which resembled typical hyperplastic polyps.A 47-year-old woman underwent curable surgery for breast ...
Colonic adenomas constitute 70-80% of all colorectal polyps, and their clinical significance relates primarily to their relationship with colorectal cancer. The malignant potential of the polyps detected by FDG-PET is unknown, as not all the colonic lesions identified by FDG-PET represent colorectal malignancies. The purpose of this study was to investigate the rate of FDG-PET positivity within...
Introduction Colon polyp size is a critical biomarker for clinical management of colonic polyps. Larger polyps have a greater malignant potential. During colonoscopy, it is important to correctly measure the size of the polyps because of the direct correlation of size with colon cancer. During polypectomy, size of the colonic polyps encountered are often gauged by visual estimation or the open ...
BACKGROUND Colonic neoplasm is associated with western diet intake and physical inactivity. These life styles are also risk factors for dyslipidemia and metabolic syndrome. The aim of this study was to evaluate the association between dyslipidemia and the prevalence of colon polyps including colon adenoma as a precancerous lesion of colonic neoplasms. METHODS We selected subjects undergoing a...
Telomere shortening and telomerase activation occur frequently in cases of colorectal carcinoma. In this study, we correlated the clinicopathological parameters with the telomere length in colorectal carcinomas, colonic polyps, and normal colonic tissues. We also investigated whether the telomere length changes reflect the biologic behavior of tumors and different modes of tumor development. Te...
Activation of the tyrosine kinase of the c-src gene product, pp60c-src, has been shown to occur in nearly every primary colorectal carcinoma, and is found as early as in polyps of high malignant potential. However, no studies have addressed potential pp60c-src changes which occur during progression. To examine this question, we have studied kinase activity and protein levels in 7 colonic polyps...
Background: Most of colorectal cancers arise from intestinal polyps. Evaluating of the expression level of genes that are involved in tumors growth and development, may consider as diagnostic factor of malignancy in the polyps. Failure of apoptosis is one of the causes of cancers. One of the key molecules in this pathway is Bid gene which connects the extrinsic to the intrinsic apoptosis pathwa...
We read with interest the article ‘Relationship between Colonic Polyp Type and the Neutrophil/Lymphocyte Ratio as a Biomarker’ by Karaman et al (2013). In their study, authors aimed to investigate the neutrophil/lymphocyte ratio (NLR) as a biomarker in distinguishing colonic polyps which are neoplastic or non-neoplastic. Finally, they concluded that despite the low sensitivity and specificity, ...
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