A case of malignant lymphoma arising bilaterally in the lower jaw

Abstract

We encountered a rare case of malignant lymphoma arising bilaterally in the lower jaw. The patient was a 83-year-old man who had a swelling on the left side of the mandible and ulceration on the right side of the mandibular gingiva. Computed tomography and magnetic resonance imaging revealed that the mass in the left side of the mandible was located in the center of the bone. Bone destruction was present in part of the buccal cortex bone. The lesion in the right side of the mandible was located in the gingival submucosa and presented no evidence of bone destruction. Histopathological examination of both lesions indicated malignant lymphoma of diffuse large B cell type. There were no abnormal findings in other regions. The patient underwent radiotherapy, and has been under observation for 8 months, without recurrence.