An ectomesenchymal chondromyxoid tumour on the lateral border of the tongue

An ectomesenchymal chondromyxoid tumour on the lateral border of the tongue:

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Publication date: Available online 4 May 2020

Source: International Journal of Oral and Maxillofacial Surgery

Author(s): K. Sakurai, K. Nakamori, M. Yamazaki, J.-I. Tanuma







Author links open overlay panelK.Sakurai1K.Nakamori1M.Yamazaki2J.-I.Tanuma2

1

Department of Oral and Maxillofacial Surgery, Regional Independent Administrative Corporation Naha City Hospital, Naha, Okinawa, Japan

2

Division of Oral Pathology, Faculty of Dentistry and Graduate School of Medical and Dental science, Niigata University, Niigata, Japan

Accepted 16 April 2020, Available online 4 May 2020.



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https://doi.org/10.1016/j.ijom.2020.04.010Get rights and content

Abstract

Ectomesenchymal chondromyxoid tumour (ECT) is an extremely rare intraoral mesenchymal tumour. Most of these tumours have been identified on the anterior aspect of the dorsal surface of the tongue. ECT is difficult to diagnose because of its rarity. We report a case of ECT arising on the lateral border of the tongue in a 67-year-old woman. The tumour, measuring 20 × 10 mm in size, was surgically removed. Histopathologically, the tumour was composed of small polygonal cells arranged in sheets, with a myxoid or hyalinized stroma. The tumour boundary was clear; however, the tumour showed a multinodular structure expanding along the tongue surface without obvious capsule. Careful examination revealed the tumour nodule to be spreading in a skip lesion-like fashion away from the main part of the tumour in the striated muscle layer. Although there was no evidence of recurrence at 18 months after the surgery, our observations suggest that surgery for ECT resection with a safety margin is more appropriate than enucleation.



Key words

ectomesenchymal chondromyxoid tumourlateral border of tonguebenign

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© 2020 International Association of Oral and Maxillofacial Surgeons. Published by Elsevier Ltd. All rights reserved.