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Extracting the Cochlea from a Human Temporal Bone: A Cadaveric Protocol
Published on: August 18, 2023
Squamous cell carcinoma of the temporal bone.
A G Bibas1, V Ward, M J Gleeson
1Skull Base Unit, Department of Otorhinolaryngology & Head and Neck Surgery, Guy's Hospital, London, UK.
The Journal of Laryngology and Otology
|January 8, 2008
Summary
Extensive surgery for temporal bone squamous cell carcinoma (SCC) may not improve survival. Subtotal petrosectomy with parotidectomy and radiotherapy is adequate for advanced SCC, offering similar outcomes to more extensive procedures.
Area of Science:
- Otolaryngology
- Surgical Oncology
- Radiation Oncology
Background:
- Squamous cell carcinoma (SCC) of the temporal bone is a rare malignancy.
- Management strategies and survival outcomes for temporal bone SCC require further investigation.
Purpose of the Study:
- To present management and survival data for temporal bone SCC.
- To evaluate if extensive surgery improves survival in these patients.
Main Methods:
- Retrospective case-series review of 17 patients (18 cases) with temporal bone SCC over 20 years.
- Data collected included primary and recurrent tumors, treatment modalities (surgery, radiotherapy, chemotherapy), and survival rates.
- Disease-specific and overall five-year survival were the main outcome measures.
Main Results:
- The mean age of presentation was 63 years.
- Five-year disease-specific survival was 64.17%, and overall survival was 47.06%.
- For advanced T3 and T4 tumors, five-year disease-specific survival was 59%, and overall survival was 40%.
Conclusions:
- Lateral temporal bone resection is adequate for T1 and T2 tumors.
- Post-operative radiotherapy may benefit large T2 tumors.
- Subtotal petrosectomy with parotidectomy followed by radiotherapy is adequate for T3 and T4 tumors, yielding outcomes comparable to more extensive surgeries.
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