Prognostic Factors Affecting Surgical Outcomes in Squamous Cell Carcinoma of External Auditory Canal

Clinical and Experimental Otorhinolaryngology
Gi-Sung NamEun Jin Son

Abstract

Carcinomas of the external auditory canal (EAC) are rare, and management remains challenging. Previous studies seeking prognostic factors for EAC cancers included cancers other than carcinomas. In this study, we analyzed the treatment outcomes of, prognostic factors for, and survival rates associated with specifically squamous cell carcinoma (SCC) of the EAC. A retrospective review of 26 consecutive patients diagnosed with SCCs of the EAC in a 10-year period was performed in terms of clinical presentation, stage, choice of surgical procedure, and adjunct therapy. Overall survival (OS) and recurrence-free survival (RFS) were calculated and univariate analysis of prognostic factors was performed. The median age of the 26 patients with SCCs of the EAC was 63 years (range, 40 to 72 years), and 16 males and 10 females were included. According to the modified University of Pittsburgh staging system, the T stages were T1 in 11, T2 in six, T3 in four, and T4 in five cases. The surgical procedures employed were wide excision in three cases, lateral temporal bone resection (LTBR) in 17, and extended LTBR in four, and subtotal temporal bone resection in two. Two patients underwent neoadjuvant chemotherapy, and two underwent adjuvant chemo...Continue Reading

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Citations

Jan 1, 2020·Laryngoscope Investigative Otolaryngology·Benjamin D Lovin, Paul W Gidley
Mar 1, 2021·Auris, Nasus, Larynx·Kaori MohriTakeshi Tsutsumi
Apr 15, 2021·Head & Neck·Neila L KlineRodney J Taylor

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Methods Mentioned

BETA
biopsy
dissection
surgical resection

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Carcinoma, Squamous Cell

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