Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
2135620 | Hematology/Oncology and Stem Cell Therapy | 2015 | 7 Pages |
Plasma cell leukemia (PCL) is a rare hematologic malignancy with very poor outcome. It is defined by the presence of >2 × 109/L plasma cells or >20% plasmacytosis of the differential white cell count in the peripheral blood. Primary PCL is first diagnosed in the leukemic phase, while secondary PCL corresponds to the leukemic transformation of a previously diagnosed multiple myeloma (MM). The incidence of PCL ranges between 2–4% of patients with MM and 0.9% of patients with acute leukemia. In this case series, we describe the clinicopathologic, immunophenotypic, and cytogenetic findings of four patients diagnosed with PCL within a ten-year period (2002–2012) at King Faisal Specialist Hospital and Research Centre (General Organization), Riyadh, Saudi Arabia.