[Epithelial-myoepithelial carcinoma--a technique to identify myoepithelial cells]

Two epithelial-myoepithelial carcinoma of parotid gland from two female patients of 48 and 80 years old, and normal gland tissue, are studied with Del Río Hortega-Polak silver impregnation technique. It is a selective and alternative method to mark myoepithelial cells in sections of paraffin embedding material or in frozen sections.