An unusual case of polypoid carcinoma in a 72-year-old woman is report
ed. The tumor showed a pedunculated growth on the lateral border of th
e tongue and was composed of a malignant basaloid component in intimat
e association with definable foci of epithelial dysplasia of the surfa
ce mucosa. It was considered that histlogic features of the present ca
se corresponded with those of basaloid squamous carcinoma.