Introduction
Over the years, the most of children with acute lymphoblastic leukemia
(ALL) are survived due to more intensive chemotherapy, improved
supportive care and better followed-up statuses. The improved survival
rates of childhood cancers increase the long-term risks of chemotherapy
and radiotherapy. Unfortunately, the risk of secondary cancer is three
to 10 times higher in childhood cancer survivors than the general
population (1-3). Besides that the survivors of pediatric acute
lymphoblastic leukemia (ALL) who were treated without radiation, the
risk of second cancer may be less than 1% at 20 years. Ewing sarcoma
family tumors (ESFTs) has constituted 2% of childhood cancers and are
uncommonly noticed as a second malignancy. An unusual entity of ESFTs is
Askin Tumor which localized in the thoracopulmonary region and mostly
seen in children and adolescents (4-6).
We report the case of a 10 year-old girl with Askin Tumor who had a
history of ALL at three year old.