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为研究钡餐检查时下咽部及颈段食管后壁出现的弧形波浪状压迹形成的机制，局部解剖观察了３０具尸体颈部标本，并与颈部健康者的３００例Ｘ线片作了对照分析。作者认为此压迹的形成系颈椎、椎间盘、前纵韧带压迫下咽部及颈段食管后壁所致，颈椎前缘增生时，此压迹更加明显。
In order to study the formation of arcuate wavy indentation in the hypopharyngeal and cervical esophageal posterior wall during barium meal examination, 30 cadaver neck specimens were dissected and compared with 300 healthy X-ray films Control analysis. The authors believe that the formation of this indentation cervical spine, disc, anterior longitudinal ligament oppression pharyngeal and cervical esophageal posterior wall caused by the cervical spine hyperplasia, the pressure marks more pronounced.