Primary Effusion Lymphoma in an HIV-Negative Patient with Chronic Myeloid Leukemia Treated with Dasatinib
Abstract
Introduction: Primary effusion lymphoma (PEL) is a malignant lymphomatous effusion, which by definition is Kaposi sarcoma herpesvirus/human herpesvirus 8-positive. PEL typically occurs in HIV-infected patients, but can also occur in HIV-negative individuals, including in organ transplant recipients. Tyrosine kinase inhibitors (TKIs) are currently the standard of care for patients with chronic myeloid leukemia (CML), BCR::ABL1-positive. Although TKIs are extremely effective in treating CML, they alter T-cell function by inhibiting peripheral T-cell migration and altering T-cell trafficking and have been associated with the development of pleural effusions.
Case Presentation: We report a case of PEL in a young, relatively immunocompetent patient with no history of organ transplant receiving dasatinib for CML, BCR::ABL1-positive.
Discussion: We hypothesize that the loss of T-cell function secondary to TKI therapy (dasatinib) may have resulted in the unchecked cellular proliferation of KSHV-infected cells, leading to the emergence of a PEL. We recommend cytologic investigation and KSHV testing in patients being treated with dasatinib for CML who present with persistent or recurrent effusions.
The Author(s). Published by S. Karger AG, Basel
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