Amylase as an additional marker of salivary gland neoplasms. An immunoperoxidase study.

The presence of amylase in normal and neoplastic salivary gland tissue was investigated by immunoperoxidase techniques. Apart from normal and inflamed parotid glands, different kinds of tumours were studied with regard to amylase: acinic cell tumours, adenocarcinomas, adenoidcystic carcinomas, salivary duct carcinomas, mucoepidermoid tumours and squamous cell carcinomas. Amylase could be seen in acinic cell tumours, but not in other neoplasms. The results were discussed with respect to the diagnostic implications.