管道扩张Canal Dilation · 耳 · 特殊感觉系统 · NTP ntp-0358
诊断要点:耳道扩张应结合适当的部位修饰词(外耳道等)进行诊断。扩张应诊断为存在(不进行严重程度分级)。
病变描述
外耳道扩张(Figure 1、Figure 2、Figure 3)通常继发于耳道被脱落的角化板层、耵聍和坏死碎屑形成的栓状物阻塞,这些栓状物使耳道膨胀。衬覆上皮可能增生。这些所见通常发生于老龄动物。
诊断与分级建议(NTP 共识)
耳道扩张应结合适当的部位修饰词(外耳道等)进行诊断。扩张应诊断为存在(不进行严重程度分级)。相关病变如炎症或上皮增生除非严重程度足以支持,否则不应单独诊断,但可在病理学描述中加以描述。
图谱


英文原文
展开 NTP 官方英文描述与建议
Comment:
Dilation of the external ear canal ( Figure 1 , Figure 2 , and Figure 3 ) is usually secondary occlusion of the ear canal by plugs of sloughed keratin lamellae, cerumen, and necrotic debris that distends the canal. The lining epithelium may be hyperplastic. These findings usually occur in aged animals.
Recommendation:
Dilation of the ear canal should be diagnosed with an appropriate topography modifier (external ear canal, etc.). Dilation should be diagnosed as present (without assignment of a severity grade). Associated lesions such as inflammation or epithelial hyperplasia should not be diagnosed separately unless warranted by severity, though they can be described in the pathology narrative.
来源与引用
原始条目:https://ntp.niehs.nih.gov/atlas/nnl/special-senses-system/ear/Canal-Dilation
图谱总目录:NTP Nonneoplastic Lesion Atlas。 内容属美国联邦政府作品(公有领域),可引用;引用时请标注来源。
建议引用格式:NTP Nonneoplastic Lesion Atlas. Canal Dilation (ear). LabSmart 中文版:
https://www.labsmart.cn/ntp/ear-canal-dilation.html
中文图谱总页(可展开对照全部 595 条):https://www.labsmart.cn/ntp-atlas.html#ear-canal-dilation