{"title":"Therapy-related Trilineage Mixed Phenotype Acute Leukemia Treated with Venetoclax and Azacitidine.","authors":"Jotaro Yamamoto, Kyosuke Yamaguchi, Otoya Watanabe, Kosei Kageyama, Yuki Taya, Daisuke Kaji, Aya Nishida, Hironori Uruga, Shinsuke Takagi, Kazuya Ishiwata, Hisashi Yamamoto, Akiko Masuda, Yutaka Takazawa, Go Yamamoto, Yuki Mori, Naoyuki Uchida, Atsushi Wake","doi":"10.2169/internalmedicine.4898-24","DOIUrl":null,"url":null,"abstract":"<p><p>This is the first report of therapy-related mixed-phenotype acute leukemia (MPAL) characterized by B-cell, T-cell, and myeloid lineage phenotypes. A 68-year-old man, who was in complete remission after chemoradiotherapy for recurrent esophageal cancer, developed bacterial pneumonia with increasing blasts in the peripheral blood, and a subsequent bone marrow biopsy revealed 85.2% blasts. A flow cytometric analysis revealed cytMPO+, CD19+, cytCD22+, and cytCD3+ markers. The patient was diagnosed with therapy-related MPAL (B/T/myeloid lineage). After the initiation of venetoclax and azacitidine, the patient achieved complete remission, and cord blood transplantation was performed. This case provides novel insights into the therapeutic options for therapy-related trilineage MPAL treatment.</p>","PeriodicalId":13719,"journal":{"name":"Internal Medicine","volume":" ","pages":"2646-2651"},"PeriodicalIF":1.1000,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12463435/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Internal Medicine","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.2169/internalmedicine.4898-24","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/2/8 0:00:00","PubModel":"Epub","JCR":"Q3","JCRName":"MEDICINE, GENERAL & INTERNAL","Score":null,"Total":0}
引用次数: 0
Abstract
This is the first report of therapy-related mixed-phenotype acute leukemia (MPAL) characterized by B-cell, T-cell, and myeloid lineage phenotypes. A 68-year-old man, who was in complete remission after chemoradiotherapy for recurrent esophageal cancer, developed bacterial pneumonia with increasing blasts in the peripheral blood, and a subsequent bone marrow biopsy revealed 85.2% blasts. A flow cytometric analysis revealed cytMPO+, CD19+, cytCD22+, and cytCD3+ markers. The patient was diagnosed with therapy-related MPAL (B/T/myeloid lineage). After the initiation of venetoclax and azacitidine, the patient achieved complete remission, and cord blood transplantation was performed. This case provides novel insights into the therapeutic options for therapy-related trilineage MPAL treatment.
期刊介绍:
Internal Medicine is an open-access online only journal published monthly by the Japanese Society of Internal Medicine.
Articles must be prepared in accordance with "The Uniform Requirements for Manuscripts Submitted to Biomedical Journals (see Annals of Internal Medicine 108: 258-265, 1988), must be contributed solely to the Internal Medicine, and become the property of the Japanese Society of Internal Medicine. Statements contained therein are the responsibility of the author(s). The Society reserves copyright and renewal on all published material and such material may not be reproduced in any form without the written permission of the Society.