导管扩张Duct Dilation · 唾液腺 · 消化系统 · NTP ntp-0236
诊断要点:只要存在,导管扩张就应诊断,并根据受累导管的数量和扩张导管的大小进行分级。如果存在导管上皮的鳞状化生,应单独诊断并分级。
病变描述
唾液腺导管扩张通常更为弥漫(累及多个导管),且导管轮廓往往不规则(Figure 1、Figure 2),而唾液腺导管囊肿往往累及一个或少数几个导管,且通常呈圆形轮廓(见 Salivary Gland - Duct - Cyst)。导管扩张有时伴有导管上皮的鳞状化生(squamous metaplasia)。导管扩张和导管囊肿在 NTP 啮齿类动物研究中不常见。
诊断与分级建议(NTP 共识)
只要存在,导管扩张就应诊断,并根据受累导管的数量和扩张导管的大小进行分级。如果存在导管上皮的鳞状化生,应单独诊断并分级。相关链接:Salivary Gland - Duct - Cyst
图谱


英文原文
展开 NTP 官方英文描述与建议
Comment:
Ductular dilation of salivary glands is typically more generalized (involving multiple ducts), and the ducts tend to have an irregular profile ( Figure 1 and Figure 2 ), whereas salivary gland duct cysts tend to involve one or a few ducts and usually have a circular profile (see Salivary Gland - Duct - Cyst ). Ductular dilation is sometimes associated with squamous metaplasia of the duct epithelium. Ductular dilation and ductular cysts are not common in NTP rodent studies.
Recommendation:
Whenever present, ductular dilation should be diagnosed and graded based on the number of ducts involved and size of the dilated ducts. If squamous metaplasia of the ductal epithelium is present, it should be diagnosed and graded separately. Related Links: Salivary Gland - Duct - Cyst
来源与引用
原始条目:https://ntp.niehs.nih.gov/atlas/nnl/alimentary-system/salivary-gland/Duct-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. Duct Dilation (salivary-gland). LabSmart 中文版:
https://www.labsmart.cn/ntp/salivary-gland-duct-dilation.html
中文图谱总页(可展开对照全部 595 条):https://www.labsmart.cn/ntp-atlas.html#salivary-gland-duct-dilation