منابع مشابه
FDG uptake in colonic villous adenomas.
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...
متن کاملVillous adenomas and carcinoma of the duodenum in Gardner's syndrome.
Patients with Gardner's syndrome are increasingly found to have polyps on routine upper gastrointestinal endoscopy, and their risk of developing periampullary carcinoma is between 3-12%. We report a 45 year old man with Gardner's syndrome who presented with periampullary carcinoma 5 years after colectomy. Review of the literature amassed another 21 cases of periampullary carcinoma in patients w...
متن کاملLarge size, villous content and distal location are associated with severe dysplasia in colorectal adenomas.
UNLABELLED Adenomatous polyps are precursor lesions for colorectal carcinoma. The risk of cancer development has been associated with age and size, amount of villous component and high-grade dysplasia of adenomas. The subject-related and adenoma-related risk factors for severely dysplastic lesions were further investigated. PATIENTS AND METHODS The study was performed in 474 men and 339 women...
متن کاملKRAS Transitions and Villous Growth in Colorectal Adenomas
Colorectal cancer (CRC) is the second most common malignancy in the western world with a lifetime risk in the general population of about 5%. The genesis of CRC and its progression, mainly from pre-existing sporadic adenomas, are caused by somatic mutations of several genes including APC, KRAS, SMAD4, TP53, and β-catenin, by epigenetic events leading to gene activation and silencing, and by a l...
متن کاملThe Absorption of Water, Sodium, and Potassium in the Large Intestine with Particular Reference to the Effects of Villous Papillomas.
The absorption of water, sodium, and potassium from isolated segments of the large intestine has been studied in 11 patients. In eight control segments adjacent to a carcinoma of the colon, absorption of water and sodium and secretion of potassium occurred. In five segments of intestine containing a villous papilloma, water, sodium, and potassium were secreted. The difference is mainly due to a...
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ژورنال
عنوان ژورنال: Annals of Surgery
سال: 1958
ISSN: 0003-4932
DOI: 10.1097/00000658-195804000-00003