Thirty-three cases of chemodectoma are presented, with patients staged in three groups: tympanic (1), tympanomastoid (2), and petrosal-extrapetrosal (3). Surgery is effective in group 1 cases.
Surgery and moderate-dose postoperative cobalt irradiation (3,500 to 4,000 rads in three weeks) are used for more advanced lesions with higher-dose irradiation (5,000 to 5,500 rads in five weeks) reserved for very extensive tumors. Overall control of tumor in these cases is 84% in follow-ups from 1 to 31 years.
George R. Moore, Jeffrey P. Robbins, Daniel L. Seale, G. Slaughter Fitz-Hugh, William C. Constable. Chemodectomas of the Middle EarA Comparison of Therapeutic Modalities. Arch Otolaryngol. 1973;98(5):330–335. doi:10.1001/archotol.1973.00780020342013