Experience with malignant tumours of the maxillary sinus in the Department of Otolaryngology Universiti Kebangsaan Malaysia, Kuala Lumpur.

Thirty one cases of malignant tumours of the maxillary sinus presenting to the Department of Otolaryngology, Universiti Kebangsaan Malaysia over a four year period from 1982 to 1986 are reviewed. 18 cases (58.1%) were squamous cell carcinoma while seven cases (22.5%) were Non-Hodgkin's lymphoma. There were four cases (12.0%) of adenoid cystic carcinoma while in two cases (6.5%) the tumours were undifferentiated. Presentation was generally late. Nasal obstruction, facial swelling and epistaxis were the main presenting symptoms. Nasal involvement was found in 61.3% of cases, while 51.6% had involvement of the palate as well. Metastasis to the cervical lymph node were uncommon (6.5%). Surgery and radiotherapy with or without chemotherapy were the main modes of treatment in the management of malignant tumours of the maxillary sinus.