A value comparison between CT and MRI in displaying carcinoma of nasopharyns which invading skull

Purpose :To investigate the difference of CT and MRI in displaying carcinoma of nasopharynx which invading the base of skull. Results :12 cases of nasdpharynx out of 30 cases were displayed by CT.with a disruption of bo skull bone、while 15 out of 30 were displayed by MRI、2 cases with cavernous sinus invaded were displayed by CT,while 5 cases were displayed by MRI. Conclusions :CT and MRI have a sin-wilar effect in displaying violation of base of skull.but MRI is prior to CT if bone displying the relation ship between the lisease and the base of skull.cave-rnous sinus. encephalon and meninge.