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The fine structure of esophago gastric junction 1. study of squamo columnar cell junction in human






Japanese Journal of Clinical Electron Microscopy 13(3-4): 315-330

The fine structure of esophago gastric junction 1. study of squamo columnar cell junction in human

An EM study of human esophagogastric junction was carried out. There was an abrupt transition from squamous epithelium to columnar epithelium at the esophagogastric junction. On observation by TEM [transmission electron microscopy], the esophagogastric junction consisted of 3 types of squamocolumnar epithelial junction. There were interdigitations and desmosomes between the squamous cells and the columnar cells. Beneath the surface, junctional complexes were observed between the 2 cells. On observation by SEM [scanning electron microscopy], esophagogastric junctional line was usually concave, and the esophagogastric junction consisted of 4 types of squamocolumnar epithelial junction. The intrinsic characteristics of the 2 cell surfaces were maintained even at the junction. Intracytoplasmic desmosomes, the structure of which was identical with that of normal desmosomes, were observed in the squamous cells at the junction.


Accession: 006677453



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