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Kim, Kim, Kim, Song, Jung, and Kim: Lipoma on superficial lobe of the parotid gland: case report
Original Article

J Korean Assoc Oral Maxillofac Surg 2010;36(5):438-440.

Published online: 10 January 2010

DOI: https://doi.org/10.5125/jkaoms.2010.36.5.438

Lipoma on superficial lobe of the parotid gland: case report

Jung-Han Kim1, Chul-Hoon Kim1, Min-Gu Kim1, Jin-Woo Song2, Eu-Gene Jung2, Bok-Joo Kim1

1Department of Oral and Maxillofacial Surgery, Department of Dentistry, Dong-A University Medical Center, Busan, Korea

2Department of Oral and Maxillofacial Surgery, School of Dentistry, Pusan National University, Yangsan, Korea

Bok-Joo Kim Department of Oral and Maxillofacial Surgery, Department of Dentistry, Dong-A University Medical Center 3-1 Dongdaeshin-dong, Seo-gu, Busan, 602-712, Korea Tel: +82-51-240-5470 Fax: +82-51-241-5475 E-mail: samehope@naver.com

Received 7 June 2010       Revised 13 October 2010       Accepted 18 October 2010

Copyright © 2010 Korean Association of Oral and Maxillofacial Surgeons

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

A lipoma is a benign tumor of matured adipose tissue that usually occurs at the shoulder, back, and abdomen. 13% of lipomas occur in the head and neck area. However, the incidence of lipoma in the parotid gland is very low, approximately 2.5%. A conservational surgical excision is recommended in cases of lipoma of the parotid gland, with only 1–2% of lipomas recurring. We report a case of a lipoma in the parotid gland that was removed by conservational surgical excision. The lesion was exposed by the pre-auricular approach and the tissue was detached. After the parotid gland envelop was exposed, a yellowish mass is observed that was easy to remove due to capsulation. Most authors recommend a surgical excision of the superficial lobe of the parotid gland as the treatment for a lipoma in the parotid gland. However, enucleation only may be a sufficient treatment when a lipoma occurs in the superficial lobe or around the parotid gland. A patidectomy is not needed when a lipoma is located at the superficial lobe of the parotid gland, and a conservational surgical excision is suitable. Therefore, a clinical diagnosis is important for reducing the damage to the facial nerve.

Keywords: Lipoma, Neoplasm, Parotid gland

References

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Fig. 1.
Computed tomograph (CT) scan.(enhanced view) A. Transverse view of CT scan, B. Coronal view of CT scan.
jkaoms-36-438f1.tif
Fig. 2.
Lipoma was exposed via preauricular approach.
jkaoms-36-438f2.tif
Fig. 3.
Macroscopic view (external) shows well-circumscribed, thinly encapsulated, and oval mass with soft consistency.
jkaoms-36-438f3.tif
Fig. 4.
Macroscopic view (cross section) shows uniform greasy cut surface with pale yellow color.
jkaoms-36-438f4.tif
Fig. 5.
The mass is well encapsulated by thin fibromembranous tissue.(H&E staining, original magnification ×40)
jkaoms-36-438f5.tif
Fig. 6.
The mass is composed of mature fat cells having only a slight variation in cellular size and shape.(H&E staining, original magnification ×200)
jkaoms-36-438f6.tif
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