منابع مشابه
The gastric precancerous cascade.
Invasive gastric carcinoma is preceded by a cascade of precancerous lesions. The first recognized histologic change is active chronic inflammation, which may persist as such: non-atrophic chronic gastritis (no gland loss), or advance to multifocal atrophic gastritis (MAG), the first real step in the precancerous cascade. The following steps are: intestinal metaplasia (first "complete" and then ...
متن کاملEndoscopic diagnosis of early gastric cancer and precancerous lesion
BACKGROUND Gastric carcinoma is one of the most common malignant tumors and is the second commonest reason of cancer deaths worldwide. It is very important to detect gastric cancer at the early stage or the precancerous lesion in stomach in order to improve the prognosis of gastric cancer. However, it is still a clinical challenge because of the lack of any tell-tale gross endoscopic signs. The...
متن کاملResearch of Helicobacter pylori infection in precancerous gastric lesions.
INTRODUCTION Helicobacter pylori (Hp) infection has been considered to play significant roles in pathogenesis of peptic ulcer. Additionally Hp is associated with the development of gastric epithelial hyperplasia and lymphoid malignancies. The International Agency for Research on Cancer has classified Hp as a class I carcinogen and a definite cause of gastric cancer in humans. Hp infection first...
متن کاملGastric precancerous diseases classification using CNN with a concise model
Gastric precancerous diseases (GPD) may deteriorate into early gastric cancer if misdiagnosed, so it is important to help doctors recognize GPD accurately and quickly. In this paper, we realize the classification of 3-class GPD, namely, polyp, erosion, and ulcer using convolutional neural networks (CNN) with a concise model called the Gastric Precancerous Disease Network (GPDNet). GPDNet introd...
متن کاملMicrosatellite instability of gastric cancer and precancerous lesions.
OBJECTIVE To investigate whether microsatellite instability (MSI) of gastric cancer and precancerous lesions were existed and its effect. METHODS Laser microdissection was used. Gastric, intestinal metaplasia, dysplasia and normal mucosa were collected respectively. Five microsatellite loci were selected and MSI was detected by denaturing high-performance liquid chromatography. RESULTS In t...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The American Journal of Digestive Diseases
سال: 1959
ISSN: 0002-9211,1573-2568
DOI: 10.1007/bf02231503