[Morphological and cytophotometric characteristics of esophageal dysplasias and cancer in situ].

Studies on some morphological features of the squamous epithelium of esophageal mucosa in dysplastic processes and cancer in situ as well as quantitative studies of the DNA content have shown that changes in the DNA content, increased polyploidy and genetic heterogenicity of the cell elements correspond to the degree of epithelial cells dedifferentiation and might be taken into account in diagnosis of early malignification of esophageal squamous epithelium.