Pathology Which of the following is not compatible with a diagnosis of chronic myelomonocytic leukemia ? A Absence of Philadelphia chromosome B More than 20% blasts in blood or bone marrow C Both a,b D None 💡 Explanation Which of the following is not compatible with a diagnosis of chronic myelomonocytic leukemia ? ✓ Correct Answer: B. More than 20% blasts in blood or bone marrow