淀粉样物质Amyloid · 肝 · 肝胆系统 · NTP ntp-0405
诊断要点:淀粉样物质一旦出现即应作出诊断并给出严重程度分级。
病变描述
淀粉样物质(amyloid)(Figure 1,箭头所示)是细胞无法清除不可溶性错误折叠蛋白的结果。它可能与慢性炎症中急性期蛋白的过度产生有关。淀粉样物质沉积在大鼠中罕见,但在某些推测具有遗传易感性的小鼠品系中是常见的年龄相关变化。肝脏中的淀粉样物质被认为是继发性淀粉样变性,可见于肝窦和血管壁内。组织化学染色(如刚果红(Congo red))和免疫组织化学染色有助于明确诊断。
诊断与分级建议(NTP 共识)
淀粉样物质一旦出现即应作出诊断并给出严重程度分级。
图谱


英文原文
展开 NTP 官方英文描述与建议
Comment:
Amyloid ( Figure 1 , arrows) occurs as a result of cells not being able to eliminate insoluble misfolded protein. It can be associated with overproduction of acute-phase protein in chronic inflammation. Amyloid deposition is rare in rats but is a common age-related change in some mouse strains that presumably have a genetic predisposition. Amyloid in the liver is considered secondary amyloidosis and is seen within sinusoids and blood vessel walls. Histochemical (e.g., Congo red) and immunohistochemical stains are useful for definitive diagnosis.
Recommendation:
Amyloid should be diagnosed and given a severity grade whenever present.
来源与引用
原始条目:https://ntp.niehs.nih.gov/atlas/nnl/hepatobiliary-system/liver/Amyloid
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. Amyloid (liver). LabSmart 中文版:
https://www.labsmart.cn/ntp/liver-amyloid.html
中文图谱总页(可展开对照全部 595 条):https://www.labsmart.cn/ntp-atlas.html#liver-amyloid