Department of Radiology, Hacettepe University School of Medicine, Ankara, Turkey.
Diagn Interv Radiol. 2011 Dec;17(4):334-42. doi: 10.4261/1305-3825.DIR.4033-10.0. Epub 2010 Nov 5.
Focal, segmental, and diffuse liver pathologies have been described in the literature. This article describes a pattern in which liver pathology is confined to a lobe. This lobar pattern has not been described previously to our knowledge. Herein, we illustrate computed tomography (CT) and magnetic resonance imaging (MRI) findings of diffuse lobar involvement patterns in various liver conditions. Diffuse lobar involvement can be observed in benign (steatosis, hepatic iron overload, cholestasis, perfusion alterations, infarction, alveolar hydatid cysts, trauma, and hemangiomas) and primary malignant (hepatocellular carcinoma) pathologies. Diffuse lobar involvement in metastatic disease appears to be rare. Due in part to their potentially unusual appearances, the diagnosis of lobar pathologies using imaging can be challenging, and entities with lobar patterns can cause diagnostic confusion. Liver MRI can be used as a problem-solving tool for diffuse lobar pathologies detected on ultrasonography and CT. Inand out-of-phase MRI can help in the assessment of lobar fat accumulation.
文献中描述了局灶性、节段性和弥漫性肝病变。本文描述了一种局限于一叶的肝病变模式。据我们所知，这种叶性模式以前尚未被描述过。在此，我们展示了各种肝脏疾病弥漫性叶性受累模式的计算机断层扫描（CT）和磁共振成像（MRI）表现。弥漫性叶性受累可见于良性病变（脂肪变性、肝铁过载、胆汁淤积、灌注改变、梗死、泡型包虫囊肿、创伤和血管瘤）和原发性恶性病变（肝细胞癌）。转移性疾病中弥漫性叶性受累似乎很少见。部分原因是它们的表现可能不常见，因此使用影像学诊断叶性病变具有一定挑战性，并且具有叶性模式的病变可能会导致诊断混淆。肝脏 MRI 可作为超声和 CT 检测到弥漫性叶性病变的解决问题的工具。同相位和反相位 MRI 有助于评估叶性脂肪堆积。
