[Transverse myelitis as initial symptom of disseminated non-Hodgkin lymphoma and HIV-associated vacuolar myelopathy: case report].

Non-Hodgkin lymphoma is frequently seen in AIDS patients usually affecting the central nervous system (CNS), especially the leptomeninges and the cerebral hemispheres. The epidural involvement is rarely described, ranging from 3.5% to 8.3% among the CNS sites. The authors present a case of disseminated non Hodgkin lymphoma associated to vacuolar myelopathy in a 27 years-old male patient with AIDS emphasizing the importance of this differential diagnosis in the myelopathies of AIDS.