to evaluate the value of computerized axial tomogram ( ct-scan ) of the nasopharynx in the management of patients with nasopharyngeal carcinoma ( npc ) , comparisons between clinical t-staging by means of indirect or direct nasopharyngeal examination , and ct-scan were performed in 101 cases .
C2931822
nasopharyngeal carcinoma
C0027442
nasopharyngeal