in order to elucidate the pharyngo-esophageal segment in normal and abnormal conditions the width of the pharyngo-esophageal junction area on three different levels : hypopharynx , infracricoid segment of the cervical esophagus ( icco ) and cervical esophagus was measured in 150 non-dysphagial volunteers and in 252 dysphagial patients examined with cineradiography during barium swallowing .
C0031354
pharyngo
C0020629
hypopharynx