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Hemophagocytic relapsed intramedullary plasmacytoma
Tarek H Mouhieddine1, Bart Barlogie2, Julie Teruya-Feldstein3
1Department of Medicine, The Mount Sinai Hospital, New York, NY, 10029, USA.
International Journal of Hematology
|January 5, 2020
Summary
A relapsed hemophagocytic intramedullary plasmacytoma, initially non-phagocytic, developed a new clone with distinct cytogenetic changes. This case highlights evolving disease characteristics in solitary plasmacytoma.
Area of Science:
- Hematology
- Oncology
- Pathology
Background:
- Intramedullary plasmacytoma is a rare plasma cell neoplasm.
- Hemophagocytic lymphohistiocytosis (HLH) is a severe systemic inflammatory syndrome.
Observation:
- A patient previously diagnosed with non-phagocytic intramedullary plasmacytoma experienced a relapse.
- The relapsed tumor exhibited hemophagocytic activity.
- A new clone with distinct cytogenetic abnormalities emerged, forming a solitary plasmacytoma.
Findings:
- The development of hemophagocytic features in a relapsed intramedullary plasmacytoma is a significant observation.
- The emergence of a new clone with different cytogenetic abnormalities indicates disease evolution and potential clonal selection.
- This case demonstrates the complex biological behavior of plasma cell neoplasms.
Implications:
- Understanding these evolving characteristics is crucial for accurate diagnosis and effective treatment strategies.
- This case may inform future research into the pathogenesis of plasmacytoma and associated HLH.
- Further investigation into the genetic drivers of plasmacytoma transformation is warranted.
