[The value of sonography in salivary gland tumors].

In a prospective study, 178 patients with tumours of the salivary glands were examined both clinically and by ultrasound. All patients have since been operated upon, and the diagnosis was confirmed histologically. The diagnostic accuracy of clinical examination is compared with that of ultrasound. Every tumour of the salivary glands could be diagnosed by ultrasound. In the benign group, an exact diagnosis of the tumour type was possible in 83% of cases. In the malignant group an exact diagnosis was only possible in 57% of cases. Furthermore, it is possible with ultrasound to recognise multiple and bilateral tumours, to determine whether a tumour is intra- or extraglandular, and to show the nature of the tumour (cyst, abscess, central necrosis) to a much greater extent than with clinical examination alone. In addition, a fairly good assessment of the cervical and intraglandular lymph nodes is obtained. We believe that ultrasound is of great importance in the diagnosis of tumours of the salivary glands.