Results 71 to 80 of about 112,503 (234)

Mucosal Prolapse Polyp Mimicking Rectal Malignancy: A Case Report

open access: yesGE: Portuguese Journal of Gastroenterology, 2016
Mucosal prolapse polyps (MPPs) are rare inflammatory lesions that are part of the mucosal prolapse syndrome. We present the case of a 40-year-old male with history of constipation referred to our institution with suspected rectal malignancy due to ...
Diogo Libânio   +5 more
doaj   +1 more source

Identification and Validation of Biomarkers in Chronic Rhinosinusitis With Nasal Polyps and Study of Their Associated Mechanisms

open access: yesWorld Journal of Otorhinolaryngology - Head and Neck Surgery, EarlyView.
ABSTRACT Background Cell senescence (CS) and lipid metabolism (LM) disorders have been reported in chronic rhinosinusitis with nasal polyps (CRSwNP). However, the mechanism is still unclear. Methods Data were obtained from public databases; differential expression analysis and machine learning were performed to identify biomarkers and to understand the
Hui‐Yi Deng   +3 more
wiley   +1 more source

Endoscopic characteristics of different grades of melanosis coli complicated with polyps [PDF]

open access: yesXin yixue
Objective To investigate the endoscopic characteristics of different grades of melanosis coli (MC) complicated with polyps. Methods Clinical and endoscopic data of 597 patients diagnosed with MC who underwent colonoscopy were retrospectively analyzed ...
Zhang Xue, Qin Jiamin, Wen Liming
doaj   +1 more source

[Intestinal polyps in childhood].

open access: yesActa gastroenterologica Latinoamericana, 1992
From 1965 to 1987, 230 polypectomies were performed in patients between 8 month to 16 years old, 147 boys and 83 girls. The most frequent symptom was rectal bleeding and the most frequent location was the rectosigmoid (96%). The polyps measured from 0.8 to 2 cm., in only one case the polyp measured more than 5 cm.
M T, García de Dávila, A, Marín
openaire   +1 more source

A Semantic Segmentation Network for Colorectal Polyp Images With Progressive Fusion of Dual‐Branch Features

open access: yesCAAI Transactions on Intelligence Technology, EarlyView.
ABSTRACT Accurate segmentation of colorectal polyps is essential for early colorectal cancer screening, yet remains challenging due to weak foreground–background contrast, disrupted boundaries caused by specular reflections and intestinal folds, and pronounced scale variation among polyps. These factors make it difficult for existing methods to jointly
Tianxu Yan   +8 more
wiley   +1 more source

FMTNet: A Fourier‐Mamba–Transformer Enhanced Network for Medical Image Segmentation

open access: yesCAAI Transactions on Intelligence Technology, EarlyView.
ABSTRACT Models based on U‐shaped networks have achieved widespread success in the field of medical image segmentation, but their performance is generally limited by structural bottlenecks in the network. At this stage, feature maps experience a sharp decline in spatial resolution due to continuous downsampling, resulting in significant loss of ...
Shaoqiang Wang   +7 more
wiley   +1 more source

Hypermucinous Dysplasia in Inflammatory Bowel Disease (IBD): Morphology, Molecular Features, and Its Place in the IBD‐Associated Neoplastic Spectrum

open access: yesJournal of Digestive Diseases, EarlyView.
This review provides the first comprehensive synthesis focused exclusively on hypermucinous dysplasia, summarizing its histopathologic definition, precursor lesions, clinicopathological associations, molecular features, and diagnostic reproducibility.
Ádám Ferenczi   +2 more
wiley   +1 more source

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