True about status marmoratus is all except ?
**Core Concept**
Status marmoratus is a rare neurological condition characterized by a mottled or marbled appearance of the brain, particularly in the basal ganglia and thalamus. This condition is often associated with perinatal asphyxia or birth trauma, leading to selective neuronal damage and gliosis.
**Why the Correct Answer is Right**
The pathophysiology of status marmoratus involves the selective vulnerability of certain neuronal populations to hypoxic-ischemic injury. The basal ganglia and thalamus are particularly susceptible to damage due to their high energy demands and sensitivity to oxygen deprivation. The resulting gliosis and scarring can lead to characteristic changes in the brain's architecture, including the formation of a marbled or mottled appearance.
**Why Each Wrong Option is Incorrect**
**Option A:** Status marmoratus is often associated with cerebral palsy, which is incorrect. While both conditions can result from perinatal asphyxia, they are distinct and separate entities.
**Option B:** Status marmoratus is characterized by a mottled appearance of the brain, which is correct. This is a key feature of the condition and can be observed on imaging studies, such as MRI.
**Option C:** Status marmoratus is often linked to intellectual disability, which is correct. Children with status marmoratus may experience cognitive and motor impairments, including intellectual disability.
**Option D:** Status marmoratus is caused by a viral infection, which is incorrect. The condition is typically associated with perinatal asphyxia or birth trauma, rather than a viral etiology.
**Clinical Pearl / High-Yield Fact**
Status marmoratus is often seen in conjunction with other signs of perinatal asphyxia, such as cerebral palsy or developmental delay. It is essential to recognize this condition and its associated features to provide appropriate care and management for affected patients.
**Correct Answer:** D. Status marmoratus is caused by a viral infection.