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Unknown primary squamous cell carcinoma metastatic to the neck
R C Wang1, H Goepfert, A E Barber
1Department of Head and Neck Surgery, University of Texas, M.D. Anderson Cancer Center, Houston 77030.
Archives of Otolaryngology--Head & Neck Surgery
|December 1, 1990
Summary
Surgery offers better survival for metastatic neck squamous cell carcinoma of unknown primary origin compared to radiation therapy. Advanced disease stages benefit most from surgical intervention for improved outcomes.
Area of Science:
- Oncology
- Head and Neck Surgery
- Cancer Research
Background:
- Metastatic neck squamous cell carcinoma from an unknown primary site presents a unique clinical challenge.
- Optimal treatment strategies remain debated, impacting patient prognosis.
Purpose of the Study:
- To retrospectively evaluate treatment outcomes for metastatic neck squamous cell carcinoma of unknown primary.
- To compare the efficacy of surgery, radiotherapy, and combined modalities in relation to disease stage and survival.
Main Methods:
- Retrospective analysis of 157 patients with metastatic neck squamous cell carcinoma of unknown primary.
- Treatments included surgery, radiotherapy, excisional biopsy, and combined modalities.
- Median follow-up was 74 months; survival rates and disease recurrence were analyzed.
Main Results:
- Overall 5-year actuarial survival was 55%.
- Surgery demonstrated significantly better 5-year survival compared to radiotherapy, with less residual disease.
- Surgery was more effective for advanced neck disease (N2b, N3a), while treatments were comparable for lower stages (NX, N1, N2a).
Conclusions:
- Surgery is a superior treatment option for controlling advanced metastatic neck squamous cell carcinoma of unknown primary.
- Neck stage, connective tissue invasion, and residual disease significantly impact survival.
- Identifying the primary tumor during follow-up occurred in 16% of cases.