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A Pathogenic NRAS c.38 GA (p.G13D) Mutation in RARA Translocation-negative Acute Promyelocytic-like Leukemia with Concomitant Myelodysplastic Syndrome

Authors :
Hideaki, Goto
Kimikazu, Yakushijin
Yoko, Adachi
Hisayuki, Matsumoto
Katsuya, Yamamoto
Sakuya, Matsumoto
Tomoe, Yamashita
Ako, Higashime
Koji, Kawaguchi
Keiji, Kurata
Hiroshi, Matsuoka
Hironobu, Minami
Source :
Internal medicine (Tokyo, Japan).
Publication Year :
2022

Abstract

An acute promyelocytic leukemia (APL) patient not demonstrating the retinoic acid receptor α (RARA) translocation is rare. A 76-year-old man was diagnosed with myelodysplastic syndrome (MDS). After a year, abnormal promyelocytes were detected with pancytopenia and disseminated intravascular coagulopathy. Morphologically, the patient was diagnosed with APL; however, a genetic examination failed to detect RARA translocation. Thereafter, whole-genome sequencing revealed an NRAS missense mutation [c.38 GA (p.G13D)]. This mutation was not detected in posttreatment bone marrow aspirate, despite residual MDS. Few reports are available on similar cases. Furthermore, the NRAS c.38 GA mutation may be a novel pathogenic variant exacerbating RARA translocation-negative acute promyelocytic-like leukemia.

Details

ISSN :
13497235
Database :
OpenAIRE
Journal :
Internal medicine (Tokyo, Japan)
Accession number :
edsair.pmid..........477f49b4439c75e50c3d02b184d49859