[Histological signs of thermal damaging by electricity]. / Gistologicheskie priznaki termicheskogo povrezhdayushchego deistviya elektricheskogo toka.

OBJECTIVE: Identification of histological signs of thermal damaging by electricity. It was studied the histological picture of the electrometric and changes in the epidermis and dermis in the area of exposure to a red-hot metal object. The same type of microscopic changes in the skin have been revealed: in the central zone of damage there were coagulation necrosis and homogenization, as well as the porous tissue structure formation; in the peripheral zone there were deformation of cells with their verticalization and the vortex figures formation. These histological signs are a manifestation of coagulation processes, hydrodynamic effects because of explosive boiling of interstitial fluid and tissue deformation that characterize the thermal damaging effect. The data obtained clarify the mechanism of the damaging effect of technical electricity on human tissue.

ADENOMA OF THE STOMACH: RETROSPECTIVE ANALYSIS OF ENDOSCOPIC BIOPSY MATERIAL.

The introduction of a screening diagnosis of precancerous lesions of gastric mucosa and elaboration of new methods of radical treatment is an important aspect of gastric cancer prevention. Digestive endoscopy with subsequent morphological study allows with high probability to correctly assess the structure of the lesion and to identify changes that have prognostic value. Gastric adenoma is the obligate precancerous lesion because the presence of intraepithelial neoplasia. Aim - retrospective review the clinical-morphologic characteristics-and frequency of gastric adenoma in a large series of endoscopies from patients with gastric polyps. Methods -.163 gastric adenomas were diagnosed by histological examination in a series of 990 patients who had upper digestive endoscopies done. The patients were analyzed as the age, sex, and the adenomas as the histological and Yamada classification, as well as their location, size, histopathological findings studied. Results - gastric adenomas were diagnosed in 16,5% in a series of patients with gasric polyps, more frequently in the women. Gastric adenomas were primarily single and developed in the antrum of.stomach. High grade dysplastic foci were found in 0,6% adenomas, which size was lesser than 2 cm. Intestinal metaplasia with high grade prognostic value was found in 18,4% cases. A carcinoma was not detected.