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目的探讨肝脏假肿瘤性病变的螺旋CT平扫及动态增强扫描表现特点。资料与方法回顾性分析25例经临床证实的肝假肿瘤性病变患者的CT图像,详细观察和记录肝假肿瘤性病灶的部位、形状以及平扫与增强各期密度变化。结果 25例共检出假肿瘤灶29个,13例位于肝镰状韧带周围,其中4例镰状韧带旁以纵裂为界左叶外段与内段病灶呈对称性分布;6例位于胆囊窝周围,2例位于肝包膜下,2例位于左叶内段后缘,2例位于肝脏中心。病灶为结节形、楔形或不规则形。按MSCT表现可分为高密度和低密度的假肿瘤性病变。结论肝脏假肿瘤性病变在螺旋CT平扫及动态增强扫描各期的密度及其变化有特征性表现,有助于与肝内真性病变进行鉴别。
Objective To investigate the features of spiral CT scan and dynamic contrast-enhanced scanning of liver pseudocystic lesions. Materials and Methods Retrospective analysis of 25 cases of clinically confirmed hepatic pseudocyst lesions in patients with CT images were observed and recorded in detail the location of liver tumor lesions, shape, and plain and enhance the density changes of various stages. Results Twenty-nine pseudotumor tumors were detected in 25 cases, and 13 cases were located around the hepatic falx ligament. Among them, 4 cases were symmetrically distributed in the outer segment of the left lobe and the segment of the inner segment beside the sickle ligament. Six cases were located in the gallbladder Around the fossa, 2 were located under the capsule of the liver, 2 were located in the posterior margin of the left internal segment, and 2 were located in the center of the liver. The lesions are nodular, wedge-shaped or irregular. By MSCT performance can be divided into high-density and low-density pseudo-neoplastic lesions. Conclusions Hepatic pseudoplastic neoplasms have characteristic features in the density and changes of spiral CT scan and dynamic enhanced scan, which are helpful to distinguish the true lesions of the liver.