Arsenic Trioxide in Treating Young Patients With Refractory Leukemia or Lymphoma

DISEASE CHARACTERISTICS: * Histologically confirmed leukemia or lymphoma refractory to standard curative treatment regimens * Measurable or evaluable disease * No meningeal leukemia or lymphoma * No HIV-related lymphoma * No lymphoproliferative diseases PATIENT CHARACTERISTICS: Age: * 2 to 21 * Acute promyelocytic leukemia (APL) patients (stratum I) must be age 2 to 12 Performance status: * ECOG 0-2 Life expectancy: * Not specified Hematopoietic: * Not specified Hepatic: * Bilirubin normal * SGPT less than 2 times upper limit of normal * No significant hepatic dysfunction that would preclude study therapy Renal: * Creatinine normal (age adjusted) OR * Creatinine clearance at least 60 mL/min * Potassium, magnesium, and calcium at least lower limit of normal (oral or IV supplementation allowed) * No significant renal dysfunction that would preclude study therapy Cardiovascular: * Rate corrected QTc interval no greater than 0.48 on EKG * No significant cardiac dysfunction that would preclude study therapy * No cardiac disease, including dysrhythmias Pulmonary: * No significant pulmonary dysfunction that would preclude study therapy Other: * Not pregnant or nursing * Negative pregnancy test * Fertile patients must use effective contraception * No persistent grade 3 or greater sensory or motor neuropathy * No prior grand mal seizures (grade 3 or greater) within the past 2 years other than febrile seizures (except for patients with APL at discretion of invest…