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血管翳

血管翳(英语:pannus),又称角膜翳,是纤维血管组织或肉芽组织的异常层。常见形成部位包括角膜上方、关节表面上方(称关节翳,见于类风湿性关节炎)或人工心脏瓣膜英语prosthetic heart valve[1]。血管翳可能以类似肿瘤的方式生长,在关节中则可能侵蚀关节软骨和骨骼。

眼科学中,血管翳是指血管从角膜缘侵入到角膜。正常人的角膜是没有血管的。慢性局部缺氧(如过度使用隐形眼镜)或炎症可导致血管翳。

关节翳

滑膜炎症和过度增生可导致关节翳形成,以及软骨、骨、肌腱、韧带和血管破坏[2]。血管翳组织由侵袭性巨噬细胞样和成纤维细胞样间充质细胞、巨噬细胞样细胞和其他释放胶原蛋白水解酶的炎症细胞组成[3]

参考资料

  1. ^ Farlex Partner Medical Dictionary © Farlex 2012. [2020-04-12]. (原始内容存档于2019-04-16). 
  2. ^ Rheumatoid Arthritis: Practice Essentials, Background, Pathophysiology. [2020-04-12]. (原始内容存档于2010-12-13). 
  3. ^ Furuzawa-Carballeda, J.; Macip-Rodríguez, P.M.; Cabral, A.R. Osteoarthritis and rheumatoid arthritis pannus have similar qualitative metabolic characteristics and pro-inflammatory cytokine response. 2008 [December 5, 2015]. (原始内容存档于2018-04-13). 
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血管翳
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