# 导管扩张（Duct Dilation）

- 器官 / 系统：包皮腺 / 雄性生殖系统（preputial-gland / reproductive-system-male）
- NTP 数据编号：ntp-0453
- 规范 URL：https://www.labsmart.cn/ntp/preputial-gland-duct-dilation.html
- 中文图谱总页锚点：https://www.labsmart.cn/ntp-atlas.html#preputial-gland-duct-dilation
- 原始出处：https://ntp.niehs.nih.gov/atlas/nnl/reproductive-system-male/preputial-gland/Duct-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
Figure 1、Figure 2 显示若干囊性结构；大多数衬覆扁平上皮，为扩张的导管。

## 病变描述（中文）
Figure 1、Figure 2 显示若干囊性结构；大多数衬覆扁平上皮，为扩张的导管。导管扩张（ductular dilation）的特征可能为积聚明亮的嗜酸性物质，符合角蛋白及角蛋白碎屑（Figure 3、Figure 4）。扩张导管的衬覆上皮常呈萎缩。导管扩张随年龄增长而加重。

## 诊断与分级建议（NTP 共识，中文）
囊肿（cyst）和导管扩张应记录并分级。若双侧腺体均受累，诊断应限定为双侧性（双侧（bilateral）），严重程度分级应基于受累更严重的腺体。潜在的治疗相关效应应在病理学描述中记录。

## 英文原文 · Comment
Figure 1 and Figure 2 show several cystic structures; most are lined by flattened epithelium and are dilated ducts. Ductular dilation may be characterized by accumulation of brightly eosinophilic material consistent with keratin and keratin debris ( Figure 3 and Figure 4 ). The lining epithelium of dilated ducts is often atrophic. Ductular dilatation increases with age.

## 英文原文 · Recommendation
Cyst and ductular dilatation should be recorded and graded. If both glands are involved, the diagnosis should be qualified as bilateral and the severity grade based on the more severely affected gland. Potential treatment-related effects should be documented in the pathology narrative.

## 配图
- https://www.labsmart.cn/ntp-atlas-images/ntp_0763.jpg
- https://www.labsmart.cn/ntp-atlas-images/ntp_0765.jpg

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