[Sensitivity and specificity of sonography and sialography in relation to the diagnosis of parotid tumors].

The results of parotid sialography from a group of patients between 1980 and 1982, were subjected to retrospective evaluation, and compared with sonographic results from another group between 1983 and 1985. In the first period studied sialography showed 75% sensitivity and 100% specificity. Both sensitivity and specificity of sonography were 100% in the second group. Thus, sonography appears superior with regard to diagnosis of intraglandular tumours of the parotid.