A 40-year-old hypeensive male was admitted to the hospital with sudden onset of headache and altered sensorium. On Examinatiion his Blood Pressure was observed to be 220/110 mm Hg and the patient died four later. What is likely pathological finding in his kidneys-
**Core Concept**
The question is testing the understanding of the pathophysiological changes that occur in the kidneys due to severe and uncontrolled hypertension, leading to a specific pathological finding.
**Why the Correct Answer is Right**
The patient's sudden onset of headache and altered sensorium, along with extremely high blood pressure (220/110 mmHg), suggests a hypertensive emergency. The kidneys are particularly vulnerable to damage from high blood pressure, which can cause narrowing of the afferent arterioles and lead to ischemic damage to the renal parenchyma. This can result in the formation of a type of scar tissue called **fibrinoid necrosis**, characterized by the deposition of fibrin and other proteins in the walls of the arterioles. This pathological finding is a hallmark of malignant hypertension.
**Why Each Wrong Option is Incorrect**
* **Option A:** This is not a specific pathological finding associated with hypertensive emergencies. While it's true that hypertension can cause renal damage, this option is too vague.
* **Option B:** Although chronic hypertension can cause changes in the kidneys, such as hypertensive nephrosclerosis, this option doesn't specifically relate to the acute changes seen in malignant hypertension.
* **Option C:** This option is also incorrect, as it's a type of renal damage associated with diabetes, not hypertension.
**Clinical Pearl / High-Yield Fact**
In cases of malignant hypertension, the kidneys are often the first organ to show signs of damage. This is because the kidneys are highly sensitive to changes in blood pressure, and even small increases in pressure can cause significant damage to the renal parenchyma.
**Correct Answer: C. Fibrinoid necrosis**