surgeon by his general dentist for evaluation of a lesion in the mandibular right
posterior area. The patient stated that he had been aware of the lesion for a “significant
amount of time” but did not report any associated pain. Radiographic examination revealed
a unilocular, well-defined radiolucent lesion of the edentulous mandibular right posterior
area, corresponding to the site of a previously extracted third molar (Figure 1A). A computed tomographic scan showed local bone resorption and perforation of the
lingual cortical plate (Figure 1B). The patient reported a history of extraction of the mandibular right third molar
more than 10 years previously.
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Dr. Vasilyeva is a resident, Division of Oral and Maxillofacial Pathology, Columbia University Medical Center, New York, NY.
Dr. Peters is an assistant professor, Division of Oral and Maxillofacial Pathology, Columbia University Medical Center, 630 W 168th St, PH15W-1562, New York, NY 10032.
Dr. Patel is an oral surgeon, Exclusive Oral Surgery, Wayne, NJ.
Published online: March 18, 2021
Received in revised form:
In Press Corrected Proof
Disclosure. None of the authors reported any disclosures.
Diagnostic Challenge is published in collaboration with the American Academy of Oral and Maxillofacial Pathology and the American Academy of Oral Medicine.
© 2021 Published by Elsevier Inc. on behalf of the American Dental Association.
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