We question whether spillage of tumor cells from a pleomorphic adenoma plays such an important role in the development of recurrent tumors as has been previously postulated. We also question the justification and benefit of postoperative radiotherapy for patients with this benign disease.

Clinical and radiological findings in 112 patients with muco/pyocele in the paranasal sinuses are presented. The modified Lynch-Howarth operation gave a primary cure rate of 82% which is satisfactory compared with other reports. Histological examination of the mucocele membranes and anamnestic information support the theory that a mucocele develops secondary to obstruction of the sinus outlet.

The development of fistulae following 197 consecutive laryngectomies performed from 1980 to 1987 have been examined. Fistulae were present in 28 patients (14 per cent). Age, T-classification, daily level of radiation dose and the time lapse between diagnosis and operation did not seem to influence the rate of fistula development. The study indicates that there is a two to three per cent risk of fistula development when a primary laryngectomy is performed. Fistula formation increased to about 10 to 12 per cent following radiotherapy, with an additional increase whenever previous operations on the neck had been done and/or if the disease demanded more extensive surgery. The study also indicates that the risk for fistula development is less when an experienced surgeon performs the operation.

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