英语语法分析

Serious complications such as perirenal hematoma, infection, shock did not occur.

无肾周血肿、感染、休克等严重并发症发生。

There were some stripe-like hemorrhagic high density within perirenal fat in 6 cases;

肾周脂肪内出现条纹状出血影6例；

Objective: To explore the appropriate surgical strategy for the treatment of perirenal liposarcoma.

目的：探讨肾周脂肪肉瘤的外科治疗方法。