Objective:Todiscuss the differences of4 treatments and their prognosis. Methods:Reviewed 58 cases ofPC

group A(n=10): Treated with aspirating the fluid in the cysts guided by B ultrasounds.Group B(n=16):Treated by ultrasound-guided puncture aspiration of hydrops and ethanol injection.Group C(n=14):Treated with laparoscopic operations.Group D(n=18):Treated by open abdominal operations. Results:The cure rate in group A was 10.00%

cure and improvement rate was 20.00%;The cure rate in group B was 56.25%

cure and improvement rate was 75.00%;The cure rate in group C was 14.29%

cure and improvement rate was 21.43%;The cure rate in group D was 11.11%

cure and improvement rate was 22.22%.Comparison of cure and improvement rate:Group A and group B(table probability =0.008 5

P<0.05);Group A and group C(table probability=0.385 4

P>0.05);Group A and group D(table probability=0.365 5

P>0.05); Group B and group C(table probability=0.004 3

P<0.05);Group B and group D(table probability=0.002 5

P<0.05);Group C and group D(table probability=0.330 9

P>0.05).Conclusion:The cure and improvement rate of group B was above group A

group C

also group D. So ultrasound-guided puncture aspiration of hydrops and ethanol injection was a better therapy method for PC.But the recurrent rate was still high(25.00%).