多层螺旋CT对颌面部海绵状血管瘤的诊断价值  

作　　者：刘明[1] 

机构地区：[1]四川都江堰市医疗中心,611830

出　　处：《中国社区医师（医学专业）》2012年第22期247-248,共2页

摘　　要：目的:探讨颌面部海绵状血管瘤的多层螺旋CT(MSCT)表现以及MSCT诊断颌面部海绵状血管瘤的价值。方法:对经手术证实的25例颌面部海绵状血管瘤患者增强前后的MSCT表现进行回顾性分析,所有病例均行MSCT多期动态增强扫描,观察肿瘤部位、范围、形态、强化方式。结果:平扫显示血管瘤静脉石15例,增强后明显强化21例,三期扫描动脉期边缘和(或)中央点状、小结节状、小斑片状强化,静脉期"渐进性强化",延迟期明显"持续强化",强化范围扩大,呈"快进慢出"改变。不均匀强化4例边缘轻度不均匀强化,静脉期延迟期无明显强化。最大密度投影(MIP)、多平面重组(MPR)显示畸形血管团,血管湖21例。结论:颌面部海绵状血管瘤的多层螺旋CT表现具有一定的特征性,MSCT是颌面部海绵状血管瘤的有效且无创性的检查方法。Objective： To explore the MSCT appearance of maxillofacial cavernous he mangioma and the value of the MSCT in di agnosis of maxillofacial cavernous hemangio ma. Materials and. Methods：25 cases with maxillofacial cavernous hemangioma con firmed by operations and pathology were an alyzed retrospectively. All cases were under went MSCT examination. The site, size, shape, and extent of maxillofacial cavernous hemangioma as well as the dynamic contrast enhanced MSCT appearances were stud ied. Resuhs：Pleboliths or calcifications were seen in 15 cases on CT plain scan. En hanced scanning showed marked enhance ment in 21 cases. On contrast enhanced multiple phase computed MSCT, Margin or central part of maxillofacial cavernous he mangioma displayed punctuate, nodular, patchy enhancement in the arterialphase ,delayed phase displayed progressive en hancement in venous phase and maintaining a state of persistent enhancement in delayed phase. 4 cases showed heterogeneous and slight enhancement of the margin of the le sion in the arterial phase whereas no en hancement in delayed phase and venous phase. 21 of 25 lesions demonstrated a col lection of irregular vessel and pooling of contrast material on both MIP and MPR. Conclusion： MSCT findings of maxillofacial cavernous hemangioma had definite feature, and MSCT is a noninvasive and effective method for the diagnosis of maxillofacial cavernous hemangioma.

关 键 词：颌面部 海绵状血管瘤 多层螺旋CT 

分 类 号：R739.81[医药卫生—肿瘤]