A case of epidermoid cyst arising laterally in the root of the tongue

DOI Web Site 12 References
  • KATAGIRI Wataru
    The Second Department of Oral and Maxillofacial Surgery, Osaka University Graduate School of Dentistry Department of Oral and Maxillofacial Surgery, Higashi-Osaka General Hospital
  • CHISOKU Hirohisa
    Department of Oral and Maxillofacial Surgery, Higashi-Osaka General Hospital
  • SUMI Tetsuro
    The Second Department of Oral and Maxillofacial Surgery, Osaka University Graduate School of Dentistry
  • AMEKAWA Shigeki
    The Second Department of Oral and Maxillofacial Surgery, Osaka University Graduate School of Dentistry
  • MATSUMOTO Ken
    The Second Department of Oral and Maxillofacial Surgery, Osaka University Graduate School of Dentistry
  • YURA Yoshiaki
    The Second Department of Oral and Maxillofacial Surgery, Osaka University Graduate School of Dentistry

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Other Title
  • 舌根部側方に発生した類表皮嚢胞の１例
  • ショウレイ ホウコク ゼッコンブ ソクホウ ニ ハッセイ シタ ルイ ヒョウヒノウホウ ノ 1レイ

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Abstract

Dermoid cyst and epidermoid cyst usually appear as midline swellings in the floor of the mouth. We report a rare case of epidermoid cyst that arose laterally in the root of the tongue. A 4-year-old girl with asymptomatic swelling on the left lateral aspect of the tongue was referred to our hospital. MR imaging showed a clearly defined cystic lesion. The lesion was extirpated with the patient under general anesthesia. Serous fluid and a white caseous substance were contained in the cystic lesion. Histological examination revealed a lining of squamous epithelium with mucous cells and keratin filling the lumen. A histological diagnosis of epidermoid cyst was made. The postoperative course was good, without any complications. There have been only 14 reports of dermoid or epidermoid cysts of the tongue in the English and Japanese literature. Only 4 of these cases arose in the lateral aspect of the tongue. The literature is reviewed, and possible origins of this lesion are discussed.

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