**Core Concept**
Cerebral malaria is a severe and potentially life-threatening complication of malaria infection, characterized by the invasion of Plasmodium parasites into the brain tissue, leading to inflammation and disruption of normal brain function.
**Why the Correct Answer is Right**
The most common cause of cerebral malaria is Plasmodium falciparum, a species of Plasmodium parasite that is transmitted to humans through the bite of an infected Anopheles mosquito. P. falciparum has a unique ability to sequester in the microvasculature of the brain, including the cerebral capillaries, leading to the formation of microvascular obstruction and subsequent cerebral edema. This sequestration is mediated by the parasite's adherence to the endothelial cells lining the brain capillaries, via the binding of the parasite's erythrocyte membrane protein 1 (PfEMP1) to the ICAM-1 receptor on the endothelial cells.
**Why Each Wrong Option is Incorrect**
**Option A:** Plasmodium vivax is less commonly associated with cerebral malaria, as it tends to cause more benign and self-limiting infections.
**Option B:** Plasmodium ovale is another species of Plasmodium parasite, but it is not typically associated with cerebral malaria.
**Option C:** Plasmodium malariae can cause a chronic form of malaria, but it is not commonly linked to cerebral malaria.
**Clinical Pearl / High-Yield Fact**
Cerebral malaria is characterized by a high fever, coma, and seizures, and requires prompt recognition and treatment with antimalarial medications, including artesunate or artemether, as well as supportive care in an intensive care unit.
**Correct Answer:** C.
Free Medical MCQs Β· NEET PG Β· USMLE Β· AIIMS
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