期刊
HEAD AND NECK-JOURNAL FOR THE SCIENCES AND SPECIALTIES OF THE HEAD AND NECK
卷 43, 期 9, 页码 2655-2662出版社
WILEY
DOI: 10.1002/hed.26729
关键词
early‐ stage external auditory canal cancer; occult metastasis; parotid gland; parotidectomy; squamous cell carcinoma
资金
- National Research Foundation of Korea [2016R1D1A1B04932112]
- Chungnam National University Hospital Research Fund [2018-CF-031]
- National Research Foundation of Korea [2016R1D1A1B04932112] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
In patients with early-stage squamous cell carcinoma of the external auditory canal, tumors located in the anterior wall and cartilaginous portion show a higher rate of occult parotid involvement, suggesting the need for elective parotidectomy in these cases.
Background The importance of elective parotidectomy in early-stage squamous cell carcinoma (SCC) of the external auditory canal (EAC) is not well established. Methods A retrospective study of 43 patients with early-stage SCC of the EAC who underwent parotidectomy in conjunction with lateral temporal bone resection at three centers. Results Overall occult parotid involvement (OPI) rate in early-stage SCC of the EAC was 13.9% (6/43). When considering both the anteroposterior position and the bony-cartilaginous position, patients with SCC in both the anterior wall and cartilaginous portion exhibited significantly higher OPI than other locations (37.5% vs. 0%, p = 0.001), with an increase in the OPI predictive value. Conclusion SCC located in either the anterior wall of the EAC or the cartilaginous portion of the EAC or both simultaneously showed a high prevalence of OPI, and elective parotidectomy should be considered in those patients.
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