Glomus jugulare tumors. Long-term control by radiation therapy.

The records of 49 patients with glomus jugulare tumor seen at the University of Virginia from 1932 to 1985 were retrospectively reviewed with the objective of assessing long-term results of treatment. Follow-up ranged from 5 to 31 years, with a minimum of 10 years in 36 patients (73%). According to McCabe's classification, 17 patients (35%) were Group I, 11 patients (22%) were Group II, and 21 patients (43%) were Group III. Analysis by therapeutic technique revealed that 20 patients received surgery alone (41%), 15 patients received radiation therapy alone (31%), and 14 patients received combined therapy (28%). Only 7 patients (14%) have had clinical or radiologic evidence of disease progression. Three of these patients were treated by surgery alone and three by a combination of surgery and radiation, but the dose was less than 4000 cGy. Only one patient treated by radiation therapy alone or with surgery and radiation to a dose in excess of 4000 cGy demonstrated disease progression. Salvage radiation therapy was given to three of the seven patients when progressive disease was detected. Radiation therapy is an effective treatment for glomus jugulare tumor with minimal late progression of disease in adequately treated patients and no significant long-term complications.