Acute Lymphoblastic Leukemia in a Patient Treated with Letrozole and Palbociclib
Jin Hyun Park1, Hyunkyung Park1, Ki Hwan Kim1
1Division of Hematology-Medical Oncology, Department of Internal Medicine, Seoul Metropolitan Government Seoul National University Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea.
Abstract:
Palbociclib, in conjunction with endocrine therapy, has been approved for the treatment of patients with advanced breast cancer. The common hematological toxicities associated with palbociclib are leukopenia and neutropenia. However, hematological malignancies have not been reported for palbociclib treatment. Here, for the first time, we present a case of acute lymphoblastic leukemia that was diagnosed in a patient undergoing treatment with letrozole and palbociclib for metastatic breast cancer. This case emphasizes the need for long term follow up of patients treated with palbociclib.
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