Title: The Significance of Enhanced CT Coronal Scan in Diagnosis of Skull Base Invasion by Nasopharyngeal Carcinoma
Abstract: Objective: To evaluate the role of enhanced CT coronal scan in diagnosis of skull base invasion by nasopharyngeal carcinoma (NPC) .Methods: The enhanced CT axial and coronal scans of 193 cases of histopathologieally proved NPC were retrospectively analyzed for status o{ skull base invasion.Results: Among the 193 cases of NPC, 120(62.2% ) were not shown lo have skull base invasion on both scans; 10(5 .2% )cases which had no evidence of skull base abnormality on axial scan were shown to have skull base invasion on coronal scan.For 15 cases(7.8% )with suspected skull base invasion shown by axial scan,11 were confirmed and 4 excluded by coronal scan.The invasion of cavernous sinus was displayed in 26 cases by axial scan and 38 cases by coronal scan. Conclusion: Enhanced CT coronal scan plays an important role in detection of skull base invasion, the site and extent as well as degree of invasion for patients with NPC. It is superior to axial scan in demonstrating cavernous sinus invasion, tumor growth through the cistern, sulcus and subarachnoid space .
Publication Year: 2004
Publication Date: 2004-01-01
Language: en
Type: article
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