V2EX z-line

Z-Line

释义 Definition

Z-line(医学)指食管下端与胃交界处在内镜下看到的一条界线,通常对应鳞状上皮与柱状上皮的交界(也常称 squamocolumnar junction,鳞柱交界)。它是评估胃食管反流巴雷特食管等情况的重要标志。(在不同个体或炎症情况下位置可能略有变化。)

发音 Pronunciation (IPA)

/zi lan/

例句 Examples

The endoscopist identified the Z-line at the lower end of the esophagus.
内镜医生在食管下端辨认出了 Z 线。

An irregular Z-line can raise suspicion for Barrett’s esophagus, especially in patients with long-term reflux symptoms.
Z 线不规则可能提示巴雷特食管的风险,尤其是在长期反流症状的患者中。

词源 Etymology

Z-line”由字母 Z + “line(线)”构成。这里的 Z 多用来形容这条交界在内镜下可能呈现锯齿状/之字形(zigzag)的外观,因此得名;“line”表示可见的边界线。

相关词 Related Words

文学与作品 Literary Works

  • Sleisenger and Fordtran’s Gastrointestinal and Liver Disease(多版医学教材,常讨论 Z-line、反流与巴雷特食管评估)
  • Clinical Gastrointestinal Endoscopy(临床消化内镜教材,涉及 Z-line 的内镜识别与记录)
  • ACG Clinical Guideline: Diagnosis and Management of Barrett’s Esophagus(美国胃肠病学会临床指南,常提及 Z-line/鳞柱交界的判读要点)
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