扩张Dilation · 腺胃 · 消化系统 · NTP ntp-0271
诊断要点：只要存在，腺体扩张就应诊断并分级；分级依据为扩张腺体的数量和大小以及受累黏膜的总面积。
病变描述
扩张的腺体通常累及胃腺的基底部至中部，可因清亮液体、分泌物或细胞碎片而膨胀（Figure 1、Figure 2、Figure 3、Figure 4、Figure 5、Figure 6）。这通常以局灶性（focal）或多灶性（multifocal）的形式发生，在大鼠中可能被视为一种衰老性改变。腺体扩张通常累及多个腺体，且扩张的轮廓常不规则（即不是界限清楚的圆形结构）。腺体囊肿（见 Stomach, Glandular Stomach - Glands - Cyst）通常为单发、较大，并由变薄的皮细胞被覆。
诊断与分级建议（NTP 共识）
只要存在，腺体扩张就应诊断并分级；分级依据为扩张腺体的数量和大小以及受累黏膜的总面积。相关链接：Stomach, Glandular Stomach - Glands - Cyst
图谱
英文原文
展开 NTP 官方英文描述与建议
Comment：
Dilated glands usually involve the basal to midportion of the gastric glands, which may become distended with clear fluid, secretion, or cellular debris ( Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , and Figure 6 ). This usually occurs as a focal or multifocal event and may be seen as an aging change in rats. Glandular dilation usually involves multiple glands, and the dilatation is often irregular in profile (i.e., not a well-circumscribed circular structure). Glandular cysts (see Stomach, Glandular Stomach - Glands - Cyst ) are usually solitary, larger, and lined by attenuated epithelium.
Recommendation：
Whenever present, glandular dilation should be diagnosed and graded; grading is based on the number and size of dilated glands and total area of mucosa affected. Related Links: Stomach, Glandular Stomach - Glands - Cyst
来源与引用
原始条目：https://ntp.niehs.nih.gov/atlas/nnl/alimentary-system/stomach-glandular-stomach/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. Dilation (stomach-glandular-stomach). LabSmart 中文版：
https://www.labsmart.cn/ntp/stomach-glandular-stomach-dilation.html
中文图谱总页（可展开对照全部 595 条）：https://www.labsmart.cn/ntp-atlas.html#stomach-glandular-stomach-dilation