Clinical History:
The patient is a 70-year old female presented with mild leukocytosis. She has no prior history of any significant diseases and is asymptomatic.
Bone marrow (BM) aspirate and biopsy were procured. Flow cytometric analysis was performed on marrow aspirate and results from selected 4-color tubes are provided for review. Acquisition: Beckman Coulter Epics XL (FCS2.0, System II). Analysis: Paint-A-Gate software (adapted to Coulter).
Tubes (FITC/PE/ECD/PC5):
Tube 1: Kappa/lambda/45/19+20
Tube 2: 5/19/45/10
Tube 3 : 8/4/45/38
Tube 4: 15/117/45/34
Tube 5: 20/10/19/38
Tube 6: FMC-7/23/5/19
Tube 7: Kappa/Lambda/5/19
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Case discussion (PPT)

Weina Chen, MD, PhD
Ameripath/Quest Diagnostics
Dallas, Texas