脾硬化性血管瘤样结节性转化1例及文献复习

目的 探讨脾硬化性血管瘤样结节性转化（SANT）的临床特点、影像表现及鉴别诊断。方法 分析1例脾SANT病人的临床特征及CT增强表现，并复习相关文献。结果 临床无明显症状，CT增强检查显示脾实质内边界清楚低密度肿块，动态增强扫描呈渐进性、向心性强化，动脉期及门静脉期密度低于脾实质，延迟期呈等密度，肿块内可见多发点状致密钙化灶。病理诊断为脾SANT。结论 脾SANT增强扫描呈渐进性、向心性强化具有一定的特征。

Sclerosing angiomatoid nodular transformation of the spleen: A case report and literature review

Objective To discuss the clinical features, imaging findings and differential diagnosis of sclerosing angiomatoid nodular transformation (SANT) of the spleen. Method The clinical features and the CT enhancement pattern of one case of splenic SANT were analyzed and the related literatures were reviewed. Results There was no specific clinical finding. There was a well-defined solitary slightly hypodense mass within the spleen. The dynamic enhanced CT scan demonstrated progressive and centripetal enhancement patterns. The lesion showed relatively low attenuation compared with background splenic parenchyma on both arterial and portal venous phases, and it became isodense to the surrounding spleen on delayed phase. There were multiple punctate calcifications in the mass. The pathological diagnosis was SANT. Conclusion Progressive and centripetal enhancement patterns are the characteristic features of SANT on enhanced CT.