Child with “Intracranial Calcification, Chorioretinitis” most appropriate cause is:
**Core Concept**
Intracranial calcification and chorioretinitis in a child suggest a congenital or metabolic disorder affecting the central nervous system and the eyes. This clinical presentation is often associated with systemic diseases that have a significant impact on the development of the brain and retina.
**Why the Correct Answer is Right**
Toxoplasmosis is a prime suspect in this scenario. It is a parasitic infection caused by *Toxoplasma gondii*, which can lead to intracranial calcification due to the formation of cysts in the brain. Chorioretinitis, an inflammation of the choroid and retina, is a common ocular manifestation of toxoplasmosis. The parasite is usually acquired congenitally or through a postnatally acquired infection.
**Why Each Wrong Option is Incorrect**
* **Option A:** This option is not provided.
* **Option B:** Other causes of intracranial calcification and chorioretinitis, such as cytomegalovirus (CMV) infection, can be considered but are less likely given the clinical presentation.
* **Option C:** This option is not provided.
* **Option D:** This option is not provided.
**Clinical Pearl / High-Yield Fact**
Toxoplasmosis is a common cause of congenital infection and can lead to significant morbidity in children, including intracranial calcification and chorioretinitis. A maternal history of exposure to *Toxoplasma gondii* during pregnancy is crucial in the diagnosis and management of congenital toxoplasmosis.
**Correct Answer:** B.