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Mode of parotid involvement in external auditory canal carcinoma

Published online by Cambridge University Press:  31 May 2006

Jae Young Choi ,
Eun-Chang Choi ,
Ho-Ki Lee ,
Jong-Bum Yoo ,
Sun Goo Kim  and
Won-Sang Lee
Jae Young Choi
Affiliation:
Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul, Korea.
Eun-Chang Choi
Affiliation:
Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul, Korea.
Ho-Ki Lee
Affiliation:
Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul, Korea.
Jong-Bum Yoo
Affiliation:
Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul, Korea.
Sun Goo Kim
Affiliation:
Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul, Korea.
Won-Sang Lee
Affiliation:
Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul, Korea.
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Abstract

Until now, little was known about the mode of parotid involvement in external auditory canal (EAC) carcinoma. The incidence of parotid node metastasis and direct parotid invasion was examined in patients with EAC carcinoma. The study comprised 11 patients with squamous cell carcinomas (SCC) and 10 patients with adenoid cystic carcinomas (ACC). A retrospective review of the surgical specimens was undertaken with specific reference to parotid node metastasis and parotid invasion. Parotid node metastasis was noted only in two cases of advanced staged SCC, whereas none of the ACC patients showed parotid node metastasis. Direct parotid invasion occurred only in advanced staged SCC,however, it did occur in early stage ACC. Our data indicated that elective parotidectomy for control of occult parotid node metastasis is necessary only in advanced SCC carcinoma, whereas parotid management to secure adequate safety margins is mandatory for advanced SCC and all cases of ACC.

Keywords

Ear ExternalCarcinoma Squamous CellCarcinoma Adenoid CysticParotid GlandTumour Invasiveness
Type
Research Article
Information
The Journal of Laryngology & Otology , Volume 117 , Issue 12 , December 2003 , pp. 951 - 954
Copyright
© Royal Society of Medicine Press Limited 2003

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