الفهرس 
Retrospective study of childhood acute lymphoblastic leukemia : Three years experience of National Cancer Institute
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Abstract
ALL is the most common childhood cancer, and remarkable improvements in outcome have been achieved. Certain subgroups of children with ALL now have a > 95% chance for cure. Our study was designed to assess survival of childhood ALL at National cancer institute, Cairo, Egypy, using ALL protocol adopted from SJCRH Total XV protocol. We reviewed the medical records of 264 children 1 - 18 years of age who were diagnosed with ALL and treated at our institution from January 2007 through December 2009. Disease characteristics and outcome were analyzed. One hundred and sixty - nine (64%) were males. The median age at diagnosis was 6.0 years. One hundred and eighteen (44.6%) children were classified as low - risk, 132 (50%) were standard - risk and 14 (5.3%) were high - risk. Fifty nine (22.5.5%) had T cell phenotype. Two hundred and twenty - six (85.6%) children were classified as having CNS I disease, 26 (9.8%) had CNS II, and 12 (4.5%) had CNS III. Induction failures were in nine patients 3.9%, two patients had persistence leukemia. Thirty (11.4%) children died in induction, and 24 (9.1%) relapsed. The site of relapse in 11 (54.8%) patients was isolated BM. Eight (33.3%) patients relapsed in the CNS and four patients 1.5% had BM and CNS relapses