Question 问题：

Compared to acute cholecystitis, Emphysematous Cholecystitis carries a much higher mortality rate. Unlike acute cholecystitis, EC does not result from obstruction of the gallbladder neck or cystic duct due to gallstones. How does EC occur? 

与急性胆囊炎相比，气肿性胆囊炎死亡率相当高。与急性胆囊炎不同，气肿性胆囊炎不是由胆囊颈部或胆囊管结石阻塞所致。气肿性胆囊炎是如何发生的？

Answer 答案：

EC usually results from thrombosis or occlusion of the cystic artery leading to ischemic necrosis of the gallbladder wall and secondary infection by gas-forming organisms. 

气肿性胆囊炎通常是由于胆囊动脉栓塞或阻塞导致胆囊壁缺血坏死，进而出现产气致病菌继发感染。

参考文献：

Emerg Radiol, epub 6/10/21