纵隔海绵状血管瘤的多层螺旋CT表现及病理基础

Multislice Spiral CT Features and Pathologic Basis of Cavernous Hemangioma in Mediastinum

目的探讨纵隔海绵状血管瘤(CHM)的多层螺旋CT表现及其与病理基础的相关性,以期进一步提高CT诊断的准确性。方法收集2008年11月-2013年11月行手术并经病理证实的4例CHM患者资料。4例术前均行多层螺旋CT平扫及增强检查,重点观察CHM的CT表现及其影像-病理相关性。结果 4例海绵状血管瘤,2例位于前纵隔,2例位于后纵隔。2例密度较均匀,2例平扫密度明显不均匀。增强扫描4例病灶内均见明显强化的血管。结论 CHM多发生在前、后纵隔,病灶内的钙化及增强的血管影是该病的特征,多层螺旋CT能准确反映该特点及其病理特征,提供更多诊断信息。

Objective To discuss multislice spiral CT（MSCT） features and pathologic basis of the cavernous hemangioma of mediastinum, and further improve the diagnostic accuracy with CT. Methods We collected 4 cases of cavernous hemangioma in mediastinum from November 2008 to November 2013. All patients underwent MSCT examination of plain scan and enhanced-contrast scan. The CT manifestations of cavernous hemangioma in mediastinum were observed. The correlation of the CT imaging findings with pathology features was analyzed retrospectively. Results Two of the 4 lesions were located in the anterior mediastinum and the other 2 in the posterior mediastinum. On plain scan, 2 lesions showed homogeneous density, and 2 had heterogeneous density. Vessels could be observed in all lesions on enhanced-contrast CT imaging. Conclusions Cavernous hemangioma in mediastinum is often located in the anterior and posterior mediastinum. Calcification and vessels in lesions are its imaging characteristics. Multislice spiral enhanced CT can accurately reflect the characteristics and pathological basis, providing more important information for diagnosis.