Inclusion body in neuron is seen in:
**Core Concept**
The question is testing the student's knowledge of viral encephalitis and the characteristic histopathological features of specific viral infections. Inclusion bodies are abnormal aggregates of viral proteins that form within infected cells, including neurons.
**Why the Correct Answer is Right**
The correct answer is **B. Herpes Simplex Encephalitis (HSE)**. HSE is a viral encephalitis caused by the herpes simplex virus (HSV), which primarily affects the temporal lobes of the brain. The virus replicates within neurons, leading to the formation of characteristic intranuclear inclusion bodies, known as Cowdry type A bodies. These inclusion bodies are composed of HSV proteins and are a hallmark of HSE.
**Why Each Wrong Option is Incorrect**
* **Option A:** This option is not specified, so we will skip it.
* **Option C:** This option is not relevant to the question, as it is not a viral infection that causes inclusion bodies in neurons.
**Clinical Pearl / High-Yield Fact**
Herpes Simplex Encephalitis (HSE) is a medical emergency that requires prompt treatment with antiviral medications, such as acyclovir. It is essential to consider HSE in the differential diagnosis of patients with acute onset of fever, headache, and altered mental status, especially if there is a history of herpes labialis or genital herpes.
**Correct Answer: B. Herpes Simplex Encephalitis (HSE).**