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A Variant of Acute Promyelocytic Leukemia with t(4;17)(q12;q21) Showed Two Different Clinical Symptoms
Author(s) -
Takahisa� Nakanishi,
Aya Nakaya,
Yusuke Nishio,
Shinya� Fujita,
Atsushi� Satake,
Yoshiko� Azuma,
Yukie� Tsubokura,
Ryo� Saito,
Akiko� Konishi,
Masaaki� Hotta,
Hideaki� Yoshimura,
Yoshihiko Kadosaka,
Kazuyoshi� Ishii,
Tomoki Ito,
Koji Tsuta,
Shosaku� Nomura
Publication year - 2019
Publication title -
hematology reports
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.239
H-Index - 12
ISSN - 2038-8330
DOI - 10.4081/hr.2019.7971
Subject(s) - acute promyelocytic leukemia , medicine , myeloid leukemia , retinoic acid , leukemia , myeloid , complete remission , chemotherapy , cancer research , oncology , biology , cell culture , genetics
A 63-year-old man was diagnosed with a rare variant of acute promyelocytic leukemia (APL) with t(4;17)(q12; q21) that showed atypical morphological features and two different clinical symptoms. He was started on standard induction chemotherapy for acute myeloid leukemia, which decreased myeloblast numbers; however, APL-like blasts remained. He then received a salvage therapy that added all retinoic acid (ATRA). After ATRA commenced, APL-like blasts disappeared and cytogenetic analysis became normal. However, myeloblasts subsequently increased, and he became resistant. In summary, this patient exhibited two different clinical courses of acute myeloid leukemia and APL.

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