Volume 64, Issue 12 e26647
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Constitutional abnormalities of IDH1 combined with secondary mutations predispose a patient with Maffucci syndrome to acute lymphoblastic leukemia

Shinsuke Hirabayashi

Corresponding Author

Shinsuke Hirabayashi

Department of Pediatrics, St. Luke's International Hospital, Tokyo, Japan

Correspondence

Shinsuke Hirabayashi, Department of Pediatrics, St. Luke's International Hospital, 9-1, Akashi-cho, Chuo-ku, Tokyo 1048560, Japan.

Email: [email protected]

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Masafumi Seki

Masafumi Seki

Department of Pediatrics, University of Tokyo, Tokyo, Japan

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Daisuke Hasegawa

Daisuke Hasegawa

Department of Pediatrics, St. Luke's International Hospital, Tokyo, Japan

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Motohiro Kato

Motohiro Kato

Children's Cancer Center, National Center for Child Health and Development, Tokyo, Japan

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Nobuyuki Hyakuna

Nobuyuki Hyakuna

Center of Bone Marrow Transplantation, Ryukyu University Hospital, Okinawa, Japan

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Takuya Shuo

Takuya Shuo

Institute for Medical Innovation, St. Luke's International University, Tokyo, Japan

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Shunsuke Kimura

Shunsuke Kimura

Department of Pediatrics, University of Tokyo, Tokyo, Japan

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Kenichi Yoshida

Kenichi Yoshida

Department of Pathology and Tumor Biology, Graduate School of Medicine, Kyoto University, Kyoto, Japan

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Keisuke Kataoka

Keisuke Kataoka

Department of Pathology and Tumor Biology, Graduate School of Medicine, Kyoto University, Kyoto, Japan

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Yoichi Fujii

Yoichi Fujii

Department of Pathology and Tumor Biology, Graduate School of Medicine, Kyoto University, Kyoto, Japan

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Yuichi Shiraishi

Yuichi Shiraishi

Laboratory of DNA Information Analysis, Human Genome Center, Institute of Medical Science, University of Tokyo, Tokyo, Japan

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Kenichi Chiba

Kenichi Chiba

Laboratory of DNA Information Analysis, Human Genome Center, Institute of Medical Science, University of Tokyo, Tokyo, Japan

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Hiroko Tanaka

Hiroko Tanaka

Laboratory of DNA Information Analysis, Human Genome Center, Institute of Medical Science, University of Tokyo, Tokyo, Japan

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Nobutaka Kiyokawa

Nobutaka Kiyokawa

Department of Pediatric Hematology and Oncology Research, National Research Institute for Child Health and Development, Tokyo, Japan

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Satoru Miyano

Satoru Miyano

Laboratory of DNA Information Analysis, Human Genome Center, Institute of Medical Science, University of Tokyo, Tokyo, Japan

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Seishi Ogawa

Seishi Ogawa

Department of Pathology and Tumor Biology, Graduate School of Medicine, Kyoto University, Kyoto, Japan

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Junko Takita

Junko Takita

Department of Pediatrics, University of Tokyo, Tokyo, Japan

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Atsushi Manabe

Atsushi Manabe

Department of Pediatrics, St. Luke's International Hospital, Tokyo, Japan

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First published: 24 May 2017
Citations: 10

Shinsuke Hirabayashi and Masafumi Seki contributed equally to this work.

Abstract

Maffucci syndrome is a nonhereditary disorder caused by somatic mosaic isocitrate dehydrogenase 1 or 2 (IDH1 or IDH2) mutations and is characterized by multiple enchondromas along with hemangiomas. Malignant transformation of enchondromas to chondrosarcomas and secondary neoplasms, such as brain tumors or acute myeloid leukemia, are serious complications. A 15-year-old female with Maffucci syndrome developed B-cell precursor acute lymphoblastic leukemia (BCP-ALL). A somatic mutation in IDH1 was detected in hemangioma and leukemic cells. KRAS mutation and deletion of IKZF1 were detected in leukemic cells. Patients with Maffucci syndrome may, therefore, be at risk of BCP-ALL associated with secondary genetic events that affect lymphocyte differentiation.

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