Oncohematology

Acute Leukemia in Elderly: Blood Smear Blastosis

Clinical case of acute leukemia: hyperleukocytosis 142×10⁹/L, severe anemia, and blasts in peripheral blood smear. Differential diagnosis and management.

Acute leukemia in a 70-year-old patient with severe cytopenia and blastosis Patient: male, 70 years old. Clinical picture: severe anemia, thrombocytopenia, leukocytosis with blasts.

🩸 Laboratory data: WBC – 142 × 10⁹/L (pronounced leukocytosis, likely blast-related) HGB – 64 g/L (severe anemia) RBC – 1.94 × 10¹²/L PLT – 30 × 10⁹/L (severe thrombocytopenia)

🔬 Blood smear: blasts

🙏Publication kindly provided by laboratory assistant Vadim Jankulov Kazakhstan, Ust-Kamenogorsk.

📚 REFERENCE INFORMATION Differential diagnosis:

  1. Acute myeloid leukemia (AML) – most probable.
  2. Acute lymphoblastic leukemia (ALL) – less common at this age, but requires exclusion.
  3. Blast crisis of chronic myeloid leukemia (CML) – if CML is in the patient’s history.

👉 Recommendations:

  1. Urgent hospitalization to a hematology ward.
  2. Immunophenotyping of peripheral blood/bone marrow (CD34, CD117, MPO, lymphoid markers).
  3. Cytogenetics and molecular genetic studies (t(9;22), FLT3, NPM1, etc.). ❗Emergency cytoreduction (for hyperleukocytosis – hydroxyurea, leukapheresis is possible).

Prognosis: depends on the type of leukemia, cytogenetics, and response to therapy. In elderly patients with AML, the prognosis is often unfavorable.