Recurrence rate of partially resected acoustic tumors.

Thirty-three (16.5%) of the first 200 patients who presented to the Otologic Medical Group with acoustic tumors underwent surgery for their subtotal removal. These 33 patients, operated on between 1964 and 1967, were followed for clinical evidence of recurrent tumor for a period ranging from 2 to 20 years. Twelve patients required further surgery for recurrent tumor and three of these repeat surgery patients died as a result of their tumors. Case reports of six patients who underwent partial resection are presented with recent computed cranial tomographic follow-up.