Journal of the Korean Pediatric Society 2000;43(8):1132-1136.
Published online August 15, 2000.
A Case of Relapsed Acute Promyleocytic Leukemia Induced Remission with Arsenic Trioxide(As2O3)
Jin Hye Park, Heung Sik Kim, Chin Moo Kang
Department of Pediatrics, College of Medicine, Keimyung University, Taegu, Korea.
Arsenic Trioxide(As2O3)로 관해된 급성 전골수구성 백혈병 1례
박진휘, 김흥식, 강진무
계명대학교 의과대학 소아과학교실
Acute promyelocytic leukemia(APL) is a unique entity in the spectrum of acute myelogenous leukemia. It has several characteristic features, including distinctive morphology, chromosomal translocation, t(15:17), disseminated intravascular coagulation and effect on retinoic acid. Retinoic acid which is a derivative of vitamin A induces differentation of APL cells in vitro and in vivo, but its cessation induces relapse of APL. Arsenic trioxide(As2O3) can induce clinical remission in patients with APL, including those who have relapsed after retinonic acid treatment. We report a case of a 9-year-old male with APL who had relapsed after cessation of retinoic acid treatment. The patient successfully achieved remission following treatment with As2O3. Arsenic trioxide treatment would be an effective and relatively safe drug in childhood APL patients refractory to retinoic acid.
Key Words: Arsenic trioxide, Acute promyelocytic leukemia(APL), Childhood

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