CT diagnosis on localization of schwannoma of cervical sympathetic and vagus nerve
- VernacularTitle:颈交感神经鞘瘤与迷走神经鞘瘤的CT定位诊断
- Author:
Hongshi WANG
;
Zhuoying WANG
- Publication Type:Journal Article
- Keywords:
Head and neck neoplasms;
Vagus nerve;
Ganglia,sympathetic nerve;
Neurilemmoma;
Tomography,X-ray computed
- From:
Chinese Journal of Radiology
2001;0(05):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To study the value of CT in confirming the diagnosis of schwannoma of the cervical sympathetic nerve ( SSN) or vagus nerve (SVN) before operation.Methods From October 1988 to March 2001,45 SSNs and 14 SVNs confirmed by surgery and pathology were analyzed to discover the rules of displacement of common carotid artery (A),internal carotid artery (I) and internal jugular vein (V). Results 43 SSNs located at the level of common carotid bifurcation or/and upper neck with A or/and I abutting against and displacing to the lateral periphery of the tumor.In 35 SSNs with enhanced CT,the V was also abutted against and displaced to the lateral periphery of the tumor.The rest two SSNs located at the root of the neck with A and V anterolateral to but not abutting against the tumor.The growth of 12 SVNs all resulted in separation between the A or I and the V.The A or I was displaced to the medial periphery of SVN and the V to the lateral periphery.Their distance was 90? to 180?. Conclusion During the growth of SSN or SVN,the CT axial scan can still accurately reflect the anatomical positional relationships among A,I,and V with the cervical sympathetic nerve or vagus nerve.So CT is a very valuable tool in confirming the diagnosis of SSN or SVN preoperatively.
