Reversible infliximab-related lymphoproliferative disorder associated with Epstein-Barr virus in a patient with rheumatoid arthritis.
ABSTRACT A 63-year-old woman with active rheumatoid arthritis (RA) had been treated with methotrexate and prednisolone. She developed cervical lymph node swelling 30 months after the initiation of infliximab therapy. A computed tomography revealed cervical and mediastinal lymph node swelling and multiple nodules (up to 13 mm in diameter) in the lungs. A lymph node biopsy showed infiltration of numerous Hodgkin-like and Reed-Sternberg-like cells. Immunohistological studies showed that these cells were positive for CD15, CD30, and Epstein-Barr virus (EBV) latent membrane protein. In site hybridization revealed the presence of EBV RNA in the nuclei of these cells. EBV DNA was detected in the biopsy specimen by southern blot analysis. She was diagnosed as having EBV-associated lymphoproliferative disorder (LPD). Immunodeficiency-associated LPD related with infliximab therapy was considered. Cessation of infliximab therapy only led to dramatic regression of LPD. This case illustrates that EBV-associated LPDs can occur as part of infliximab adverse effects in patients with RA.
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ABSTRACT: TNF-alpha blockers represent one of the most important therapeutic strategies for rheumatoid arthritis, but their use has raised the question about their safety profile, particularly in respect to viral infections/reactivations. We describe the case of a patient who developed a symptomatic EBV reactivation 11 days after the first infusion of infliximab.06/2011; 2011:530568. DOI:10.1155/2011/530568
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ABSTRACT: A 73-year-old female, diagnosed with rheumatoid arthritis (RA), complicated with severe levels of joint destruction, started etanercept (ETN) because of high persistent RA disease activity. Although her articular symptoms dramatically improved, she developed marked pancytopenia after the introduction of ETN. Bone marrow aspirate specimen revealed hypocellular marrow in three hematopoietic series without atypical findings, which was compatible with aplastic anemia (AA). This is a rare case of severe pancytopenia due to AA presumably induced by ETN.Central European Journal of Medicine 10/2012; 7(5). DOI:10.2478/s11536-012-0037-5 · 0.21 Impact Factor
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ABSTRACT: Molecular imaging (MI) constitutes a recently developed approach of imaging, where modalities and agents have been reinvented and used in novel combinations in order to expose and measure biologic processes occurring at molecular and cellular levels. It is an approach that bridges the gap between modalities acquiring data from high (e.g., computed tomography, magnetic resonance imaging, and positron-emitting isotopes) and low (e.g., PCR, microarrays) levels of a biological organization. While data integration methodologies will lead to improved diagnostic and prognostic performance, interdisciplinary collaboration, triggered by MI, will result in a better perception of the underlying biological mechanisms. Toward the development of a unifying theory describing these mechanisms, medical physicists can formulate new hypotheses, provide the physical constraints bounding them, and consequently design appropriate experiments. Their new scientific and working environment calls for interventions in their syllabi to educate scientists with enhanced capabilities for holistic views and synthesis.Medical Physics 09/2008; 35(8):3444-52. DOI:10.1118/1.2948321 · 3.01 Impact Factor