木瓜蛋白酶肺气肿的扫描电镜与透射电镜观察

被引:2
作者
孙本韬 [1 ]
李志敏 [1 ]
白春生 [1 ]
郭明 [1 ]
李建平 [1 ]
范建 [1 ]
张彰 [1 ]
机构
[1] 山西医学院
关键词
D O I
暂无
中图分类号
R563 [肺疾病];
学科分类号
1002 ; 100201 ;
摘要
木瓜蛋白酶肺气肿包括肺泡水肿、出血,肺泡扩大、融合,肺泡隔变薄缩短,肺泡孔增多、扩大和泡壁开窗以及毛细血管损伤等病理过程。肺泡的水肿、出血主要是由于上皮和内皮细胞间连结损伤的结果。毛细血管的损伤包括内皮细胞的增生、肿胀或某些部位的坏死、再生,胶原纤维侵入管腔。这些因素使管腔变窄或阻塞。扩张肺泡的毛细血管被挤压或曳拉使管径变细或闭塞。肺泡Ⅰ型上皮细胞受损较小,但有的肺泡的Ⅰ型上皮细胞呈现坏死脱落,基底膜加厚,Ⅱ型上皮细胞增生。
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