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Scanning electron microscope study of the veins at the human esophago-gastric junction
C A Ferraz-de-Carvalho1, E A Liberti, I Fujimura
1Department of Anatomy, São Paulo University, Brazil.
Revista Do Hospital Das Clinicas
|March 1, 1994
Abstract:
Cast of the mucosal and submucosal veins of the esophago-gastric junction were studied in five necropsy specimens by scanning electron microscopy to analyse some of the characteristics of their shape and surface. Two types of veins were described: 1) veins with circumscript, fusiform and/or ampullar bulges and relatively smooth surfaces; 2) veins with numerous, small bulges and blister-shaped micro-dilatations. The role of these features is considered in the formation of esophageal varices.