关于干性坏疽的描述，下列正确的是（） -题库考试答案搜索网

关于干性坏疽的描述，下列正确的是（）

单选题

2021-12-26 02:48

A、腐败菌感染严重
B、其发生机制是动脉阻塞，静脉回流正常
C、全身中毒症状严重
D、坏死组织与周围组织无明显分界线
E、常见于肺、子宫等内脏器官

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正确答案

B

试题解析

干性坏疽常见于动脉阻塞但静脉回流尚通畅的四肢末端，因水分散失较多，故坏死区干燥皱缩呈黑色（系红细胞血红蛋白中Fe²⁺和腐败组织中H2S结合形成硫化铁的色泽），与正常组织界限清楚，腐败变化较轻。

标签：细胞、组织的损伤和适应病理学主治医师病理学风湿病(医学高级)

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