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Published on: May 26, 2023
Squamous cell carcinoma of the temporal bone: results and management
Henricus Kunst1, Jean-Pierre Lavieille, Henri Marres
1Department of ENT and HNS, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands.
Objective:
Evaluation of the management and survival of patients treated for temporal bone squamous cell carcinoma.
Study Design:
A retrospective analysis.
Setting:
Tertiary care, academic referral center.
Patients:
Twenty-eight patients underwent primary treatment for squamous cell carcinoma of the temporal bone.
Interventions:
The patients were staged using the modified Pittsburgh staging system. Patients underwent a local resection, lateral temporal bone resection, or a subtotal lateral temporal bone resection usually followed by radiotherapy.
Main Outcome Measure:
The survival rate of patients grouped by tumor size was calculated.
Results:
Staging revealed 12 pT1, 2 pT2, 4 pT3, and 10 pT4 tumors. The mean follow-up was 34 months (2-132 mo). The Kaplan-Meier survival curves showed survival rates at 5 years of 83 and 25% for the stages pT1 and pT4, respectively. The pooled survival curves showed survival rates at 5 years of 85 and 46% for the stages pT1p/T2 and pT3/pT4, respectively.
Conclusion:
Long-term prognosis of the carcinoma of the external auditory canal mainly depends on the stage and primary treatment. Surgery may consist of a lateral temporal bone or subtotal temporal bone resection; in T3 and T4 tumors, resection may be combined with a superficial parotidectomy. If disease is diagnosed in the neck or parotid, then a neck dissection and total parotidectomy may also be performed. Additional radiotherapy should be provided in incompletely resected T1 and all T2 and T3 tumors and part of the T4 tumors. T4 tumors may be treated according to their subclassification based on the anatomic extension.
