Soyer P, Bluemke D A, Fishman E K, Rymer R
Department of Body and Vascular Imaging, Hôpital Lariboisière AP-HP, Paris, France.
Abdom Imaging. 1998 Mar-Apr;23(2):161-5. doi: 10.1007/s002619900312.
To report our experience with fluid-fluid levels within focal hepatic lesions and determine if this finding indicates a specific diagnosis.
We reviewed our experience with eight patients with focal hepatic lesions that showed fluid-fluid level on cross-sectional imaging. Seven CT scans, four MR examinations, and four sonograms were reviewed. The hepatic lesions included metastases (four patients), biliary cystadenoma (two patients), cavernous hemangioma (one patient), and hematoma (one patient). A histologic diagnosis was made in all cases.
Fluid-fluid levels were found in both malignant and benign focal hepatic lesions. Fluid-fluid levels were seen on six CT scans, four MR examinations and on none of the four sonograms. Radiologic-pathologic correlation showed that fluid-fluid levels corresponded to internal hemorrhage in all but one case. In the case of cavernous hemangioma, a fluid-fluid level was found to correspond to a sedimentation effect within a large vascular space.
Fluid-fluid levels in focal hepatic lesions do not indicate a specific diagnosis but can be seen in both malignant and benign conditions affecting the liver.
报告我们对肝脏局灶性病变内液-液平面的经验，并确定这一发现是否提示特定诊断。
我们回顾了8例肝脏局灶性病变患者的资料，这些病变在横断面成像上显示有液-液平面。回顾了7例CT扫描、4例磁共振成像检查和4例超声检查。肝脏病变包括转移瘤（4例）、胆管囊腺瘤（2例）、海绵状血管瘤（1例）和血肿（1例）。所有病例均作出了组织学诊断。
在恶性和良性肝脏局灶性病变中均发现有液-液平面。6例CT扫描、4例磁共振成像检查发现有液-液平面，4例超声检查均未发现。放射学-病理学对照显示，除1例病例外，液-液平面均对应于内部出血。在海绵状血管瘤病例中，发现液-液平面对应于大血管腔内的沉积效应。
肝脏局灶性病变内的液-液平面并不提示特定诊断，在影响肝脏的恶性和良性病变中均可出现。
