CD4+ lymphocytopenia and Pneumocystis jirovecii pneumonia in a metastatic breast cancer patient treated with palbociclib and corticosteroids

Background: Palbociclib, a cyclin-dependent kinase 4 and 6 (CDK4/6) inhibitor used to treat metastatic breast cancer, is known to cause myelotoxicity and primarily neutropenia, but its potential to induce severe lymphopenia and opportunistic infections is less understood. Case description: A 61-year...

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Bibliographic Details
Main Authors: Shahar Dekel, Emmanuelle Alaluf, Tal Sella, Avshalom Leibowitz, Ana Belkin
Format: Article
Language:English
Published: SMC MEDIA SRL 2025-07-01
Series:European Journal of Case Reports in Internal Medicine
Subjects:
Online Access:https://www.ejcrim.com/index.php/EJCRIM/article/view/5519
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