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Choroid plexus cysts (CPCs) are cysts that occur within choroid plexus of the brain. They are the most common type of intraventricular cyst, [1] occurring in 1% of all pregnancies. [2] It is believed that many adults have one or more tiny CPCs. [3] The fetal brain may create these cysts as a normal part of development.
Primary neuronal tumors occurring in the ventricular system were considered to be rare. Most cases described were of non-neuronal origin such as oligodendroglioma, ependymoma, meningioma, choroid plexus papilloma and giant cell. Neurocytomas were probably historically misdiagnosed as intraventricular oligondedronglioma or clear cell ependymoma ...
The finding is relatively common, with a prevalence of ~1%. Choroid plexus cysts are usually an isolated finding. [18] The cysts typically disappear later during pregnancy, and are usually harmless. They have no effect on infant and early childhood development. [19] Choroid plexus cysts are associated with a 1% risk of fetal aneuploidy. [20]
The most common intracranial anomaly is the presence of choroid plexus cysts, which are pockets of fluid on the brain. These are not problematic in themselves, but their presence may be a marker for trisomy 18. [9] [10] Sometimes, excess amniotic fluid or polyhydramnios is exhibited. [7]
Choroid plexus tumors are a rare type of cancer that occur from the brain tissue called choroid plexus of the brain. [3] Choroid plexus tumors are uncommon tumors of the central nervous system that account for 0.5–0.6% of intracranial neoplasms in people of all ages.
Asymptomatic cysts, termed pseudocysts, normally require active monitoring with periodic scans for future growth. [7] Symptomatic (producing or showing symptoms) cysts may require surgical removal if they are present in areas where brain damage is unavoidable, or if they produce chronic symptoms disruptive to the quality of life of the patient.
Choroid plexus papilloma, also known as papilloma of the choroid plexus, is a rare benign neuroepithelial intraventricular WHO grade I lesion found in the choroid plexus. [1] It leads to increased cerebrospinal fluid production, thus causing increased intracranial pressure and hydrocephalus .
In the case of choroid plexus papilloma, surgical removal of the cyst-containing lesion from within the third ventricle caused a full recovery. The mobile nature of the cystic lesion led to its intermittent obstruction of the foramen of Monro and proximal aqueduct, producing the bobble-head symptoms. Once removed, all symptoms disappeared. [5]