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Occult parotid involvement in early‐stage squamous cell carcinoma of the external auditory canal
Author(s) -
Chang Jae Won,
Lee Seulgi,
Lee Jeon Mi,
Moon In Seok,
Cho YoungSang,
Cho YangSun,
Choi Jin Woong
Publication year - 2021
Publication title -
head and neck
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.012
H-Index - 127
eISSN - 1097-0347
pISSN - 1043-3074
DOI - 10.1002/hed.26729
Subject(s) - occult , medicine , parotidectomy , stage (stratigraphy) , basal cell , auditory canal , temporal bone , parotid gland , surgery , radiology , pathology , biology , paleontology , alternative medicine
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.