MYOEPITHELIAL CARCINOMA (MALIGNANT MYOEPI THELIOMA) OF THE SALIVARY-GLANDS - A CASE-REPORT

We report the rare development of a myoepithelial carcinoma in a pleom orphic adenoma involving the minor salivary glands in the buccal mucos a of a 78-year-old female. Tumor presented as a small asymptomatic lef t buccal mass. The initial dominant component of the neoplasm was a pl eomorphic adenoma, while the minor component was a myoepithelial carci noma. Recurrences of tumor after 2 and then 5 years were excised. Hist opathological examination of the last tissue removed showed a pure myo epithelial carcinoma of the minor salivary glands with out evidence fo r a pleomorphic adenoma. The clinical features, therapy, diagnosis, hi stopathology and literature are reviewed.