Malignant lymphoma in maxilla with cystic involvement: a case report.

Introduction: Most radiolucent jaw lesions are benign and resolve with proper diagnosis and treatment. However, a small percentage of radiolucent jaw lesions are malignant and more difficult to manage.
Methods: A biopsy of the radiolucent jaw lesion associated with swelling after nonsurgical root canal therapy was submitted.
Results: The lesion had the combined diagnosis of diffuse large B-cell lymphoma with cystic involvement. The patient has since undergone radiation and chemotherapy treatments. Recall appointments indicate healing of the lesion, and no other areas of lymphoma have been found.
Conclusions: The existence of a nonhealing radiolucent jaw lesion emphasizes the importance of an early, definitive diagnosis with biopsy.
(Copyright © 2013 American Association of Endodontists. Published by Elsevier Inc. All rights reserved.)