- Patients with lymphoma or solid tumours (except primary CNS tumours) who have untreated brain metastases, untreated spinal cord compression or meningeal metastases are not eligible (CNS imaging is not required to rule this out unless there is a clinical suspicion of CNS disease). Patients with treated brain metastases who have radiologic evidence of stable brain metastases, with no evidence of cavitation or hemorrhage in the brain lesion, are eligible providing that they are asymptomatic. If being treated with corticosteroids, must be at a stable or decreasing dose for at least 7 days prior to study entry.