Diagnostic value of computed tomography in parotid tumours

In 18 cases of parotid tumours, CT demonstrated their primary site, extent and invasion of surrounding tissue precisely. It was valuable in the majority of cases in differentiating benign from malignant tumours and could distinguish accurately intrinsic from extrinsic. CT sialography was superior in equivocal cases when it made the tumour easier to identify and the diagnosis more accurate.