Metabolic Syndrome in Young Patients With Acute Lymphoblastic Leukemia in Remission

DISEASE CHARACTERISTICS: Part 1 * Diagnosis of precursor B-cell acute lymphoblastic leukemia (ALL) * In first remission * In first 3 months of maintenance therapy * No T-cell ALL, very high-risk ALL, or infant ALL (\< 1 year old at diagnosis) Part 2 * Diagnosis of precursor B-cell or T-cell ALL * In first remission * Must have been diagnosed and treated (at least to the maintenance phase) at the Division of Pediatric Oncology at the Vanderbilt-Ingram Cancer Center within the past 7 years * No very high-risk ALL or infant ALL (\< 1 year old at diagnosis) PATIENT CHARACTERISTICS: * Not specified PRIOR CONCURRENT THERAPY: * See Disease Characteristics * No prior or concurrent cranial radiotherapy (Part 1)