Case History
A 48-year-old male with facial flushing was found to have atypical cells in both the peripheral blood (<1%) and bone marrow (50% on aspirate differential). Based on the provided photos and flow cytometry, which of the following is the best diagnosis?
- AML with t(8;21)
- CML
- AML with inv(16)
- Mast cell leukemia (aleukemia variant)
Blood 
Aspirate
Flow 
Marrow Biopsy
Answer: D
Case contributed by: David Dorn, M.D., Fellow