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Ossifying pleomorphic adenoma of the maxillary antrum

Published online by Cambridge University Press:  29 June 2007

K. C. Lee ,
J. K. C. Chan  and
Y. W. Chong
K. C. Lee*
Affiliation:
Institute of Pathology, Queen Elizabeth Hospital, Hong Kong.
J. K. C. Chan
Affiliation:
Institute of Pathology, Queen Elizabeth Hospital, Hong Kong.
Y. W. Chong
Affiliation:
Institute of Pathology, United Christian Hospital, Hong Kong.
*
Dr. K. C. Lee, Institute of Pathology, Queen Elizabeth Hospital, Wylie Road, Kowloon, Hong Kong.
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Abstract

An unusual case of pleomorphic adenoma with exuberant bone formation, occurring in the maxillary antrum of a 21-year-old male and showing repeated recurrence, is reported. In contrast to the endochondral ossification in the previous reported cases of pleomorphic adenoma, direct deposition of osteoid by metaplastic myoepithehal cells is suggested to explain the bone formation. The difficulties of distinguishing this tumour from osteosarcoma during intraoperative diagnosis are discussed.

Keywords

Paranasal sinus neoplasmsPleomorphic adenoma, ossifying
Type
Clinical Records
Information
The Journal of Laryngology & Otology , Volume 106 , Issue 1 , January 1992 , pp. 50 - 52
Copyright
Copyright © JLO (1984) Limited 1992

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