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Zorluk: KolayPediatric Hematology and Oncology

Match each pediatric hematologic or oncologic diagnosis with its most characteristic peripheral blood smear finding.

  • Sickle cell disease (in a school-aged child)Howell-Jolly bodies
  • Glucose-6-phosphate dehydrogenase (G6PD) deficiencyHeinz bodies and bite cells
  • Iron deficiency anemiaMicrocytic, hypochromic red blood cells
  • Acute lymphoblastic leukemia (ALL)Lymphoblasts with a high nuclear-to-cytoplasmic ratio

Cevap

Sickle cell disease pairs with Howell-Jolly bodies; G6PD deficiency pairs with Heinz bodies and bite cells; Iron deficiency anemia pairs with Microcytic, hypochromic red blood cells; Acute lymphoblastic leukemia pairs with Lymphoblasts.
Each diagnosis has a classic morphological hallmark on the peripheral blood smear driven by its underlying pathophysiology: autosplenectomy in sickle cell disease (Howell-Jolly bodies), oxidative damage in G6PD deficiency (Heinz and bite cells), reduced hemoglobin synthesis in iron deficiency (microcytic, hypochromic cells), and marrow infiltration by immature cells in ALL (lymphoblasts).

Adım Adım Çözüm

1
Identify the underlying pathophysiologic mechanism of each condition.
Sickle cell disease leads to functional asplenia; G6PD deficiency leads to oxidative hemoglobin damage; iron deficiency impairs hemoglobin synthesis; ALL involves bone marrow replacement by malignant progenitor cells.
Understanding the mechanism is essential for predicting the cellular appearance on a blood smear.
2
Correlate the mechanism with the classic peripheral blood smear description.
Asplenia leads to retained nuclear remnants (Howell-Jolly bodies); oxidative damage leads to precipitated hemoglobin and subsequent macrophage clearance (Heinz bodies and bite cells); impaired hemoglobin synthesis yields small, pale cells (microcytic/hypochromic); and malignant progenitors appear as immature blasts (lymphoblasts).
This establishes the correct clinical associations required for diagnosis.

Anahtar Kavram

Peripheral blood smear findings in pediatric hematologic conditions
Tahmini Süre:45s
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Konular

Pediatric Hematology and Oncology

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