CT和MRI对颅底肿瘤的诊断价值(附105例分析)

Diagnostic Value of CT and MRI for Basicranial Tumors(A report of 105 cases)

目的:分析颅底肿瘤的CT和MRI表现,总结CT和MRI对颅底肿瘤的诊断价值.方法:收集一组经手术及病理证实的颅底肿瘤105例,全部病例行CT和MRI平扫加增强检查.结果:本组105例中,颅底区肿瘤36例,其中脊索瘤10例,转移瘤11例,三叉神经瘤5例,骨软骨瘤5例,骨软骨肉瘤2例,淋巴瘤2例,骨巨细胞瘤1例;颅底上区肿瘤46例,其中脑膜瘤23例,垂体瘤18例,胆脂瘤5例;颅底下区肿瘤23例,其中鼻咽癌16例,蝶窦癌4例,筛窦癌2例,颈静脉孔区神经瘤1例.CT和MRI表现各异,可清楚显示颅底肿瘤的大小、部位、范围、内部结构及向周围的浸润程度,对颅底肿瘤能作出正确诊断.结论:CT和MRI对颅底肿瘤的诊断具有重要价值,对指导临床治疗具有极大意义.

Objective： To summarize the diagnostic value of CT and MRI for basicranial tumors by analyzing the CT and MRI images of basicranial tumors. Methods： 105 cases of hasicranial tumors which were verified by operation and pathology, had undergone CT and MRI plain scan and enhancement scanning. Results： In 105 cases, 36 cases were basicranial tumors, among which 10 cases were chordoma, 11 cases metastatic tumor, 5 cases trigeminal tumor, 5 cases osteochondroma, 2 cases osteochondrosarcoma,2 cases lymphoma and 1 case giant cell tumor of bone; 46 cases were suprabasifcranial tumors , among which 23 cases were meningioma, 18 cases pituitary tumor, 5 cases cholesteatoma; 23 cases were infrabasicranial tumors, among which 16 cases were nasopharyngeal carcinoma, 4 cases were tumor of sphenoid sinus, 2 cases tumor of ethmoid sinus, i case neuroma of jugular foramen. CT and MRI manifestations varied, with clear display of the size, location, range , internal structure and infiltrative degree of basicranial tumors. All of these contributed to accurate diagnosis. Conclusion：CT and MRI have important values in the diagnosis of basicranial tumors and provide significant guidance for clinical treatment.