Results 11 to 20 of about 1,049,877 (307)

A Polyp from Another Polyp [PDF]

open access: yesCanadian Journal of Gastroenterology, 2013
An 86-year-old woman presented for initial evaluation after an abnormal positron emission tomography (PET) scan revealed activity in the sigmoid colon suggestive of malignancy. She had a medical history of chronic obstructive pulmonary disease with a recent lung nodule that was found to be malignant.
Vincent Kuo   +2 more
openaire   +3 more sources

The Initiation and Progression of Neoplasia in Inherited and Sporadic Colorectal Cancer. [PDF]

open access: yes, 2009
PhDThis dissertation describes investigations into aspects of neoplastic initiation and progression in the gut, in the context of inherited and sporadic gastrointestinal cancer. In familial adenomatous polyposis, there is marked locoregional variation
Will, Olivia Constance Claire
core   +4 more sources

Juvenile polyp [PDF]

open access: yesEuropean Journal of Pediatrics, 2013
The most frequent clinical presentation of intestinal polyps is painless rectal bleeding. Although colonoscopy is the modality of choice for the diagnosis of intestinal polyps, sonography may be the first diagnostic tool in the evaluation of children with bloody stools. Ultrasonography has the advantage of being safe and noninvasive.
Caiulo, Silvana   +2 more
openaire   +3 more sources

Polyp Surveillance [PDF]

open access: yesClinics in Colon and Rectal Surgery, 2008
Surveillance after colonic polypectomy is important to detect and remove missed synchronous polyps and cancers and new metachronous polyps or cancers. The authors review methods of surveillance and the risk of recurrent adenomas and provide surveillance recommendations.
W Donald, Buie, Anthony R, MacLean
openaire   +2 more sources

A statistical approach for robust polyp detection in CT colonography [PDF]

open access: yes, 2005
In this paper we describe the development of a computationally efficient computer-aided detection (CAD) algorithm based on the statistical features derived from the local colonic surface that are used for the detection of colonic polyps in computed ...
Chowdhury, Tarik A.   +5 more
core   +2 more sources

Anorectal polyp

open access: yesActa Gastro Enterologica Belgica, 2021
A 71-year-old female with hypertension presented with painless rectal bleeding and found to have a soft mass on rectal exam. The colonoscopy revealed a large pedunculated polyp with patchy discoloration arising from the dentate line (Fig. 1). Biopsies of the polyp were obtained.
R, Bansal, H, Ghanta, R, Blue, R, Sharma
openaire   +2 more sources

Diminutive Polyposis Coli: Should All Polyps be Removed during a Colonoscopy? [PDF]

open access: yes, 2021
Introduction:Colorectal cancer (CRC) is the second most common cause of cancer-related death. Most CRCs arise from colorectal polyps or adenomas. Colonoscopy with polypectomy offers a real-time management of benign adenomas, which breaks the adenoma ...
Hasan Ökmen, Kamer Tomaoğlu
core   +1 more source

Meta-Polyp: A Baseline for Efficient Polyp Segmentation

open access: yes2023 IEEE 36th International Symposium on Computer-Based Medical Systems (CBMS), 2023
In recent years, polyp segmentation has gained significant importance, and many methods have been developed using CNN, Vision Transformer, and Transformer techniques to achieve competitive results. However, these methods often face difficulties when dealing with out-of-distribution datasets, missing boundaries, and small polyps.
openaire   +3 more sources

Clinical Features and Outcomes of Gallbladder Polyps in Children

open access: yes, 2022
BACKGROUND: Gallbladder polyps are rare lesions protruding into the gallbladder lumen with variable clinical presentation. No standard treatment algorithm has been developed for pediatric gallbladders, and the malignant potential of the gallbladder is ...
Berna Oğuz   +17 more
core   +1 more source

A fully automatic CAD-CTC system based on curvature analysis for standard and low-dose CT data [PDF]

open access: yes, 2008
Computed tomography colonography (CTC) is a rapidly evolving noninvasive medical investigation that is viewed by radiologists as a potential screening technique for the detection of colorectal polyps.
Chowdhury, Tarik A.   +5 more
core   +3 more sources

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