Human neurolymphomatosis by adult T-cell leukemia

We report a case of adult T-cell leukemia presenting with sensorimotor polyneuropathy with persistent severe pain. The patient died without treatment after 4 months. Autopsy showed infiltration of peripheral nerves by leukemia with no involvement of the CNS. This case closely resembles Marek's disease of fowls, a virus-induced T-cell lymphoma associated with neurolymphomatosis.