# 扩张（Dilation）

- 器官 / 系统：腺胃 / 消化系统（stomach-glandular-stomach / alimentary-system）
- NTP 数据编号：ntp-0271
- 规范 URL：https://www.labsmart.cn/ntp/stomach-glandular-stomach-dilation.html
- 中文图谱总页锚点：https://www.labsmart.cn/ntp-atlas.html#stomach-glandular-stomach-dilation
- 原始出处：https://ntp.niehs.nih.gov/atlas/nnl/alimentary-system/stomach-glandular-stomach/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
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）。

## 病变描述（中文）
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，中文）
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

## 英文原文 · 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.

## 英文原文 · 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

## 配图
- https://www.labsmart.cn/ntp-atlas-images/ntp_0113.jpg
- https://www.labsmart.cn/ntp-atlas-images/ntp_0125.jpg

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