Comparative studies of CT pictures and intraoperative findings in malignant neoplasms of the paranasal sinuses and nasopharynx

Five cases of malignant paranasal sinus and nasopharyngeal cancer were demonstrated. They illustrated the discrepancies in the evaluation of the extensive neoplastic process using CT scanning and intraoperative examination. The limitation of CT scanning in the diagnosis of advanced malignant cancer in this region was discussed.