MSCT对鼻咽部良、恶性病变的诊断价值(附35例分析)

MSCT Diagnosis of Benign and Malignant Nasopharynx Diseases:Report of 35 Cases

目的:探讨鼻咽部良、恶性病变的MSCT表现及鉴别诊断,提高对鼻咽部良、恶性病变的影像学认识。方法:回顾性研究35例经病理证实的鼻咽部良、恶性病变,着重就鼻咽部良、恶性病变的MSCT影像特点、诊断及鉴别诊断进行分析。结果:恶性病变23例,平扫表现为全部出现咽隐窝变浅或消失,绝大部分病例显示病灶侵犯咽旁间隙及邻近组织结构,11例出现颅底骨质破坏及颅内侵犯;16出现颈部淋巴结转移。增强扫描,病灶出现不同程度强化。良性病变12例,表现为单纯的咽隐窝膨隆或后顶壁增厚,病变边界多较清楚,一般不侵犯咽旁间隙.结论:MSCT能很好地显示鼻咽部、颅底和淋巴结等结构,对鼻咽部良、恶性病变有较高的定性和定位诊断价值。

Objective： To investigate the MSCT findings and differential diagnosis of benign and malignant nasopharynx diseases, so as to improve the understanding and knowledge. Methods： A retrospective study was carried out among 35 cases with benign and malignant nasopharynx diseases, diagnosed based on pathohistology.The emphasis was put on its image features and the key points for diagnosis and differential diagnosis of benign and malignant nasopharynx diseases.Results： There were 23 cases of malignant diseases, All showed the lacuna pharynges shallow or disappeared on the plain scans, most appeared the lesion involving the lateral pharyngeal space and its adjacent structures, 11 cases had bone involvement of skull base and intracranial invasion, and 16 cases displayed metastasis to the neck lymph nodes.Various degress of enhancement could be observed among these cases on the contrast scans. MSCT findings of 12 cases of benign diseases were purely swelling of pharyngeal recess or thickening of superio-posterior wall, the boundary of the diseases were clear, the diseases did not invade parapharyngeal space. Conclusion： MSCT can well display the structures of nasopharynx, skull bases, lymph nodes, etc, and it can well locate and identify benign and malignant nasopharynx diseases.