[Mucoepidermoid tumor of the epipharynx].

Case report about a mukoepidermoid-tumor, which was investigated by means of histology and electron microscopy. The localisation of this tumor in the epipharynx is a rarity and unknown in the literature. The variable differentiated tumor consists of epidermoid cells with different graduation of maturity, of epithelial cells from the gland ducts and primitive acini as well as in the majority of undifferentiated cell types. The tumor seems to be of a "low grade malignity".