View clinical trials related to Adenoma.
Filter by:Identification and localization of pathological parathyroid gland before parathyroidectomy is traditionally done by a combination of two methods: ultrasound and sestamibi scan. The investigators would like to show that one exam that includes ultrasound and fine needle aspiration of the parathyroid gland for parathyroid hormone level is as accurate as the traditional method.
Prospective and randomized compare between microsurgical and endoscopic transsphenoidal MRI assisted resection of pituitary adenomas.
To compare the incremental benefit of chromoendoscopy in addition to high definition white light and narrow band imaging in predicting submucosal invasion within laterally spreading lesions in the colon and in determining the presence of residual or recurrent adenoma at the post endoscopic resection scar
During colonoscopy, the endoscopist will document prospectively all polyps detected and note the size, location and morphology. Polyps of 4-20 mm will be removed only in accordance with the method the cold snare. Afterwards, the remaining tissues could be observed with an imaging technology called Optivista with an injection of 10-50 ml of saline solution (if required) to improve visibility of the tissues. The endoscopist will continue to remove the remaining polyp tissue (with a snare or forceps) until there are no more visible polyp tissues. Biopsies from the polyp resection site will be sent to the laboratory for analysis to confirm the complete resection.
In this single-center experience we retrospectively evaluated principal clinical outcomes of endoscopic papillectomy in all patients referred to our unit. The same evaluation was then performed dividing sproradic ampullary adenoma from familial adenomatous polyposis associated adenomas, and resulting outcomes were compared.
The aim of the study is to develop a score system in order to differentiate adenomatous polyps, hyperplastic polyps and serrated adenomas on the basis of optical features. Endoscopic images of colorectal polyps will be collected from a prospectively managed database. Histopathological diagnoses are available for all polyps. Histopathological diagnoses serve as gold standard in this study. In the first phase of the study optical features of serrated adenomas are extracted from the database. Discriminators are then defined on the basis of the extracted features. In the second phase a test set of high quality pictures are provided to both novices and experts of colorectal endoscopy. Participants are asked to use the above named discriminators in order to rate pictures and to classify polyps into three classes (adenomatous polyps, hyperplastic polyps and serrated adenomas). In the third phase of the study accuracy of optical bases diagnoses is calculated by comparing optically derived diagnoses with histopathological diagnoses (gold standard).
The purpose of this study is to investigate the pathologic features, complications, and prognostic factors of functioning adrenal adenoma and suggest follow-up algorithms for adrenal incidentaloma.
A prospective, multicentre, observational study of all patients referred for endoscopic resection of sessile colorectal polyps sized ≥20 mm conducted with intention to treat analysis
The purpose of this study is to collect prospective observational data regarding patients with diagnosed Familial Adenomatous Polyposis (FAP) undergoing cold snare polypectomy for duodenal adenomas
Adenoma detection rate (ADR) in colon cancer screening is most important for avoiding colon cancer development. Recent studies suggest a benefit of endoscopic devices attached to the distal tip of the colonoscope for improving the ADR. This work is the first GERMAN randomized controlled trial comparing standard colonoscopy with EndoRIngs-assisted colonoscopy. EndoRings is a new FDA approved device that is attached to the distal tip of the colonoscope. Better Polyp detection is suspected by flattening the mucosal folds during withdrawal