Malignant lymphoma with osteosis is a rare disease. We report a case of malignant lymphoma seen in the third cervical vertebra body. A 63-year-old man experienced mild neck pain. Deep tendon reflexes were normal and symmetric. Sensory was intact. MMT was all 5. In the radiography, we found a lytic change in the third cervical vertebral body. We suspected metastatic tumor, but we could not find the primary tumor. We operated with instruments for spinal support. Diagnosis of the malignant lymphoma (B cell type) was by the post operative pathological examination. We performed chemotherapy. 4 months after surgery, there was no recurrence.
