To determine lumbar spine and total body bone mineral density (BMD) in pediatric patients who have undergone cranial or craniospinal irradiation for posterior fossa tumors, specifically medulloblastoma and ependymoma and to analyze the association between degree of osteopenia and factors that may affect BMD.
Department of Pediatrics, Division of Pediatric Endocrinology and Metabolism, Montreal Children's Hospital, Quebec, Canada. preetha.krishnamoorthy@muhc.mcgill.ca