Cooley’s anemia is also known as
**Core Concept**
Cooley's anemia, also known as beta-thalassemia major, is a severe form of thalassemia that results from a mutation in the HBB gene leading to a significant reduction in the production of the beta-globin chains of hemoglobin. This condition necessitates regular blood transfusions to maintain the patient's red blood cell count and prevent complications.
**Why the Correct Answer is Right**
The correct answer refers to Cooley's anemia, which is characterized by severe anemia, bone deformities, and increased susceptibility to infections. The pathophysiology involves the impaired production of beta-globin chains, leading to the accumulation of alpha-globin chains, which precipitate and form inclusions within red blood cells, causing them to become fragile and prone to hemolysis. The increased demand for red blood cells necessitates frequent transfusions, which can lead to iron overload and various complications.
**Why Each Wrong Option is Incorrect**
* **Option A:** This option is incorrect as it is not a recognized synonym for Cooley's anemia.
* **Option B:** This option is incorrect as it is not a valid term associated with Cooley's anemia.
* **Option C:** This option is incorrect as it is a type of anemia caused by a deficiency in vitamin B12, not a genetic disorder like Cooley's anemia.
**Clinical Pearl / High-Yield Fact**
Cooley's anemia is a classic example of a genetic disorder that affects the production of a crucial protein, in this case, the beta-globin chains of hemoglobin. Understanding the pathophysiological mechanisms underlying this condition is essential for developing effective treatment strategies and managing complications associated with the disease.
**Correct Answer: D. Beta-thalassemia major**