Epidural lymphoma: a rare presentation of extranodal disease.

Extranodal involvement in lymphomas is well-documented in the literature. However, certain anatomical sites, such as the epidural space, are rarely affected by lymphoproliferative neoplasms. When lymphomas are confined to the epidural space without other recognisable sites of involvement at diagnosis, they are classified as primary spinal epidural lymphoma. We report the case of a man in his early 30s who presented with lower back pain and progressive quadriparesis. Imaging revealed an extradural mass extending from the sixth to the tenth thoracic vertebrae, with lateral extension into the extrapleural space. A biopsy confirmed diffuse large B-cell lymphoma, and the patient was started on combination chemotherapy.