True malignant mixed tumours (carcinosarcomas) of salivary gland origi
n are rare and not widely recognize lesions. These tumours account for
approximately 0.2 per cent of all malignancies of the major salivary
glands (Stephen et al., 1986). They usually occur in pre-existing pleo
morphic ademonas of major salivary glands and have an aggressive and o
ften rapidly fatal progression. We report a case of carcinosarcoma in
a minor salivary gland of the upper lip. Its management and the use of
immunocytochemical stains to demonstrate the separate epithelial and
connective issue components are discussed.