摘要
目的探讨胸壁神经鞘瘤的CT、超声表现及其与病理组织学间的关系,提高对胸壁神经鞘瘤影像表现的认识。资料与方法搜集经手术病理证实的胸壁神经鞘瘤11例,回顾性分析其CT、超声表现和病理表现之间的对照关系。结果10例良性神经鞘瘤,1例恶性神经鞘瘤,均为单发。CT和超声显示病灶位于胸神经走行分布区。良性病变表现为边界清晰的实性或囊实性肿块,呈中低密度或回声区。恶性病变边缘不规整,累及周围组织。肿瘤密度或回声是否均匀取决于瘤内AntoniB型组织的分布以及囊变、骨化或出血和血栓形成等变化。肿瘤强化表现多样,强化幅度一般为20～35HU,主要由肿瘤内AntoniA型和AntoniB型组织比例决定;无强化或低强化取决于肿瘤囊变出血、胶原沉积、纤维化或钙化和AntoniB型组织分布。彩色多普勒血流显像(CDFI)显示肿瘤多无显著血流信号。结论了解胸壁神经鞘瘤的病理学特征与CT和超声影像表现的相关性有助于诊断和鉴别诊断。
Objective To discuss the correlation of CT and ultrasonographic features with pathological results in schwannoma of chest wall. Materials and Methods We retrospectively analyzed the relationship between CT and ultrasonographic features with pathologic characteristics of 11 cases pathologically proven chest wall schwannoma. Results 11 single schwannomas were evaluated, among them, 10 were benign nerve sheath tumors, 1 was malignant nerve sheath tumors Noenhanced CT and ultrasonagraphy showed that the benign schwannoma was well defined solid mass or mass with solid and cystic components. The attenuation of tumors and the echogenic character were slightly lower than or equal to that of muscle. The malignant tumor was irregularly defined and invasive. The heterogeneous sign on CT and ultrasonography were depended on the location of Antoni B zone, cystic degeneration, ossification, hemorrhage, thrombosis and so on. The chest wall schwannoma was diffused or irregular enhanced after intravenous administration of contrast agent. The enhancement magnitude was about 20 -35HU which was influenced by the tissue portion of Antoni A and Antoni B. The nonenhanced and low enhanced part of the tumor indicated cystic degeneration, hemorrhage, collegen deposition and Antoni B distribution. Most of them showed little blood flow. Conclusion Schwannoma of chest wall has well correlation of CT and ultrasonographic features with pathologic characteristics, which are helpful for diagnosis and differential diagnosis.
出处
《临床放射学杂志》
CSCD
北大核心
2009年第6期796-799,共4页
Journal of Clinical Radiology
关键词
神经鞘瘤
胸壁
体层摄影术
X线计算机
超声
病理学
Schwannoma Chest wall Tomography, X-ray computed Ultrasonagraphy Pathology
