A percutaneous drainage catheter was initially inserted into the right retroperitoneal lesion under sonographic guidance to treat the biloma because of high surgical risk.

• 由于此男性患者的年龄太大，属于手术麻醉高危险群，因此选择先在超音波导引下，经皮穿刺放置引流管，作为胆汁的初步治疗。