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논문 기본 정보

자료유형
학술저널
저자정보
Haerim Song (Department of Pediatrics, Korea University Guro Hospital, Korea University College of Medicine, Seo) Eun Sang Yi (Department of Pediatrics, Korea University Guro Hospital, Korea University College of Medicine, Seo)
저널정보
대한소아혈액종양학회 Clinical Pediatric Hematology-Oncology Clinical Pediatric Hematology-Oncology Vol.29 No.2
발행연도
2022.10
수록면
70 - 73 (4page)

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Acute promyelocytic leukemia (APL) is a subtype of acute myeloid leukemia (AML) characterized by translocation of chromosomes 15 and 17 (t(15;17)), which rarely oc-curs in the pediatric population. Isolated central nervous system (CNS) relapse is par-ticularly rare in children with APL, and a standard treatment has not yet been established. In this case, a 15-year-old male adolescent with APL had no CNS in-volvement at the initial diagnosis. After remission induction therapy with idarubicin, all-trans retinoic acid, and intrathecal (IT) cytarabine, a bone marrow (BM) study re-vealed morphological and cytogenetic complete remission. However, immature mye-loid cells and blasts were observed in the cerebrospinal fluid (CSF). IT triple chemo-therapy (ITT) consisting of cytarabine, methotrexate, and hydrocortisone was ad-ministered in addition to the planned systemic chemotherapy. ITT was performed weekly for 6 weeks with consolidation therapy, and then every 3 months for 2 years during the period of maintenance therapy. Abnormal immature cells were no longer detected after the second ITT administration. The patient survived without evidence of BM or CNS relapse until 1 year after treatment completion. The combination of IT chemotherapy might be a possible treatment option for CNS relapse in patients with APL, and further studies are needed to establish an optimal treatment strategy for them.

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