[Epidemiologic evaluation of pediatric malignancies in 17 Shahrivar hospitals]

ABSTRACT

Introduction: although cancers occur rarely in children, they considered as the second cause of death in children underl4 years old. Cancers in children differ markedly from those in adults according their nature, distribution, and prognosis. Acute Lymphoblastic leukemia and lymphoma account about 40% , central nervous system tumors consist of 30% and embryonal malignancies and sarcoma account for about another 10% of all pediatric cancers