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Columnar epithelium-lined esophagus (Barrett's esophagus) is an acquired disorder associated with a high incidence of adenocarcinoma of the lower esophagus. Columnar epithelium resembling intestinal metaplasia (IM) is especially important, since it is considered to be a premalignant condition. The
Serum levels of tumor markers almost not detectable in precancerous states or early cancer, the behavior of the tumor associated antigen CA 19-9 in colorectal carcinogenesis was analysed. In order to investigate the adenoma-carcinoma sequence, tissue antigenic expression was measured in adenomas,
Advances in the understanding of biochemical and molecular processes associated with cellular growth and differentiation, as well as colonic carcinogenesis hold promise for the development of new diagnostic and therapeutic modalities for this disease. Altered glycosylation of cell surface and
Monoclonal antibodies to epidermal antigens and cell surface carbohydrate markers, as defined by lectin binding, were used to analyze the cells in squamous and basal cell carcinomas of the skin (SCC and BCC). The cells in BCC failed to stain with the lectin peanut agglutinin (PNA), which stains
The monoclonal antibodies C50 and C241 with specificities for the carcinoma-associated carbohydrate structures sialylated Lea and sialosyllactotetraose, respectively, were used in the indirect immunofluorescent test for demonstration of malignant cells in patients with basal cell carcinoma (BCC).
A transformation in the composition of colonic glycoconjugates has been described in adenomas, carcinomas, and certain premalignant conditions. These changes have been detected histochemically by the labeling patterns of fluorescein-conjugated lectins, which bind specific carbohydrate structures on
Intestinal metaplasia is a well-established premalignant condition of the stomach that is characterized by mucin carbohydrate modifications defined by histochemical methods. The purpose of the present study was to see whether the expression of mucin core proteins was modified in the different types
Gastric duplication cyst (GDC) in an adult can have several clinical presentations. A review of the literature showed previously reported cases of GDC presenting as pancreatic pseudocyst or with greatly raised concentrations of carbohydrate antigen 19-9 (CA 19-9). It is often difficult to