Enlargement of Inferior Alveolar Nerve Canal and Mental Neuropathy Associated With B-Cell Lymphoma: A Case Report and Literature Review.

Enlargement of an inferior alveolar nerve canal (IANC) on radiographic imaging can indicate the presence of a wide variety of pathologic entities. Oral and maxillofacial surgeons have the unique opportunity to regularly examine panoramic radiographs and must exercise proficient clinical judgment when noting abnormal findings on imaging. While malignant processes associated with IANC enlargement are uncommon, these pathologies do occur and may be associated with significant sequelae, especially when accompanied by a delay in diagnosis and in treatment. The purpose of this case report is to describe a case in which a patient presented with mental nerve neuropathy associated with unilateral IANC enlargement on radiography, which was found to be a B-cell lymphoma on biopsy. More importantly, we aim to remind oral and maxillofacial surgeons of this rare presentation of a malignant process so as to promote prompt recognition and referral for appropriate treatment.