# 扩张(Dilation) - 器官 / 系统:食管 / 消化系统(esophagus / alimentary-system) - NTP 数据编号:ntp-0304 - 规范 URL:https://www.labsmart.cn/ntp/esophagus-dilation.html - 中文图谱总页锚点:https://www.labsmart.cn/ntp-atlas.html#esophagus-dilation - 原始出处:https://ntp.niehs.nih.gov/atlas/nnl/alimentary-system/esophagus/Dilation - 授权:美国联邦政府作品,公有领域;引用请标注 NTP Nonneoplastic Lesion Atlas - 适用说明:仅供科研使用,不用于临床诊断 ## 一句话结论 食管扩张(esophageal dilation)的特征是食管腔扩大和食管壁变薄。 ## 病变描述(中文) 食管扩张(esophageal dilation)的特征是食管腔扩大和食管壁变薄。慢性食管扩张还可能伴有食管壁肌肉和神经细胞的退行性变。饲料物质嵌塞在食管内是食管扩张(扩张、巨食管)的原因之一。在 NTP 研究中,食管扩张主要发生于饲喂粉状饲料的雌性 F344 大鼠。该病变可导致死亡、化脓性异物性肺炎或鼻炎。 ## 诊断与分级建议(NTP 共识,中文) 食管扩张应当予以诊断,并根据扩张食管的整体大小进行分级。 ## 英文原文 · Comment Esophageal dilation is characterized by enlargement of the esophageal lumen and thinning of the esophageal wall. Chronic esophageal dilation may also have degeneration of the muscles and nerve cells in the wall of the esophagus. Feed material impacted in the esophagus is one cause of esophageal dilation (ectasia, megaesophagus). In NTP studies esophageal dilation has occurred primarily in female F344 rats administered a powdered diet. This lesion may result in mortality, suppurative foreign-body pneumonia, or rhinitis. ## 英文原文 · Recommendation Esophageal dilation should be diagnosed and graded based on the overall size of the dilated esophagus. ## 配图 - https://www.labsmart.cn/ntp-atlas-images/ntp_0003.jpg - https://www.labsmart.cn/ntp-atlas-images/ntp_0004.jpg 整理:北京天融慧通科技有限责任公司(LabSmart)| https://www.labsmart.cn