CAJ | 학술논문

目的：对比分析CT和MRI对于颈静脉孔区原发肿瘤病变的诊断价值。方法回顾性分析20例经手术病例证实为颈静脉孔区肿瘤病变的CT和MRI表现。结果20例患者中脑膜瘤3例，颈静脉球瘤8例，神经鞘瘤8例，高分化软骨肉瘤1例。CT和MRI均清晰显示颈静脉孔增大，其中CT显示骨质吸收破坏11例、骨质浸蚀破坏9例，而MRI误判4例骨质浸蚀破坏为吸收破坏。MRI及CT显示神经鞘瘤纵向分布体征分别为8例、4例，显示神经鞘瘤囊变分别为5例、2例；MRI显示颈静脉球瘤“椒盐”征6例，而CT仅显示瘤内迂曲增粗血管2例；MRI显示脑膜瘤“脑膜尾”征3例，而CT显示不清；CT清晰显示软骨肉瘤钙化特征。结论 CT及MRI对于颈静脉孔区原发肿瘤具有重要诊断价值，MRI对于瘤体整体分布、细节观察优势明显，而CT更易显示病灶周围骨质改变及病灶内钙化情况。
목적：대비분석CT화MRI대우경정맥공구원발종류병변적진단개치。방법회고성분석20례경수술병예증실위경정맥공구종류병변적CT화MRI표현。결과20례환자중뇌막류3례，경정맥구류8례，신경초류8례，고분화연골육류1례。CT화MRI균청석현시경정맥공증대，기중CT현시골질흡수파배11례、골질침식파배9례，이MRI오판4례골질침식파배위흡수파배。MRI급CT현시신경초류종향분포체정분별위8례、4례，현시신경초류낭변분별위5례、2례；MRI현시경정맥구류“초염”정6례，이CT부현시류내우곡증조혈관2례；MRI현시뇌막류“뇌막미”정3례，이CT현시불청；CT청석현시연골육류개화특정。결론 CT급MRI대우경정맥공구원발종류구유중요진단개치，MRI대우류체정체분포、세절관찰우세명현，이CT경역현시병조주위골질개변급병조내개화정황。
Objective To investigate the value of MRI and CT in the diagnosis of primary tumor in jugular foramen area. Methods CT and MRI findings in 20 cases of primary tumour in jugular foramen area,which were proved by surgery and pathology were retrospectively analysed. Results Of 20 cases, meningiomas(n=3), glomus jugular tumors (n=8), jugular foramen schwannomas (n=8) and well differentiated chondrosarcoma (n=1) were detected. The jugular foramen enlargement could be showed both in CT and MRI in 20 cases. 11 cases had bone absorption in cases and bone erosion in 9 cases could be showed in CT,but MRI mistook bone erosion for bone absorption in 4 cases. For schwannomas, the characteristic of longitudinal distribution was pictured by MRI in 8 cases and by CT in 4 cases, cystic changes were revealed by MRI in 5 cases and by CT in 2 cases. The"salt sand pepper"sign could be displayed in MRI in 6 cases of glomus jugular tumors ,but only the tortuous and dialted blood vessels only could be showed in enhanced CT in 2 cases of glomus jugular tumors. The"tail sign"could be clearly displayed in MRI in 3 cases of meningiomases, but CT displayed obscurely. The character of calcification could be showed CT in chondrosarcoma. Conclusion Both CT and MRI were important in diagosing primary tumour in jugular foramen area. MRI was expert to display the distrubution and details,CT was good at displaying bone change and calcification .