López-Quiles J, Ferreira E, Jiménez-Heffernan JA, Del
Canto M.
Department of Oral and Maxillofacial Surgery, Hospital La Zarzuela, Madrid,
Spain.Abstract
Clear cell carcinoma is a rare type of salivary gland
carcinoma. It has a low degree of malignancy and long-term prognosis is
favourable after surgical removal. The authors describe the case of a human
immunodeficiency virus (HIV) infected 43-year-old woman who presented with a
tumour on the floor of the mouth. After biopsy, left suprahyoid lymph node
dissection and removal of the submandibular and sublingual glands was
performed, followed by radiotherapy. Histologically, the tumour presented
the characteristic features of hyalinizing clear cell carcinoma, defined as
a variant of clear cell carcinoma by the latest World Health Organization
classification. Hyalinizing clear cell carcinoma has a characteristic
histological pattern and, to date, there is insufficient information to
determine whether both forms behave similarly or differently. The present
case illustrates a highly uncommon tumour variant occurring in a
HIV-infected patient. To date, this association has not been described in
the medical literature. The low grade of malignancy reported for this tumour
demands a precise diagnosis and complete tumoral excision.
Copyright © 2011 International Association of Oral and
Maxillofacial Surgeons. Published by Elsevier Ltd. All rights reserved. |