A 10-year-old child presents with Anemia. His peripheral smear finding is shown below. What is the most probable type of anemia, this child is suffering from?
**Core Concept**
The peripheral smear finding in this child is suggestive of anemia with characteristic abnormalities in red blood cell morphology. This type of anemia is caused by a defect in hemoglobin synthesis, leading to the production of abnormal hemoglobin variants.
**Why the Correct Answer is Right**
The peripheral smear shows target cells, which are a hallmark of Hemoglobin C disease (HbC). HbC is a variant of hemoglobin resulting from a mutation in the HBB gene, leading to the substitution of glutamic acid with lysine at position 6. This mutation disrupts the normal structure of the hemoglobin molecule, causing it to aggregate and form tetramers with other abnormal hemoglobin chains. The resulting red blood cells are more prone to hemolysis, leading to anemia.
**Why Each Wrong Option is Incorrect**
* **Option A:** This option is not provided, but if it refers to another type of anemia, it would be incorrect because the peripheral smear findings do not match the characteristic morphological abnormalities of that condition.
* **Option B:** This option may refer to Sickle Cell Disease (HbS), but the peripheral smear findings do not show the characteristic sickle-shaped red blood cells, which are a hallmark of HbS.
* **Option C:** This option may refer to Thalassemia, but the peripheral smear findings do not show the characteristic microcytosis and hypochromia that are characteristic of Thalassemia.
**Clinical Pearl / High-Yield Fact**
Hemoglobin C disease can be distinguished from Sickle Cell Disease by the presence of target cells on the peripheral smear, rather than the characteristic sickle-shaped red blood cells. Additionally, Hemoglobin C disease is less likely to cause severe anemia than Sickle Cell Disease.
**Correct Answer:** C. Hemoglobin C disease.