The following results were obtained : 1 ) pyogenic abscess were prone to develop multiple lesions and were usually associated with biliary disorders pleural effusion and ascites . 2 ) amebic abscess tended to develop a single lesion or a single lesion with daughter lesions and tended to involve the caudate lobe . 3 ) perifocal edema and hyperemia ( double wall sign ) was seen only in the amebic abscess . 4 ) gas within the abscess was seen only in the pyogenic group 其结果显示如后： ( 1 )化脓性肝脓疡倾向于产生多发性病灶且易合并有胆道疾病、腹水及肋膜积水； ( 2 )阿米巴性肝脓疡倾向于单一性或单一病灶合并多发性子脓疡，并并有较高的尾叶侵犯发生率， ( 3 )病灶周边水肿仅见于阿米巴性肝脓疡； ( 4 )产气病灶仅发生于化脓性肝脓疡。
