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Arachnoid cysts are cerebrospinal fluid covered by arachnoidal cells and collagen [1] that may develop between the surface of the brain and the cranial base or on the arachnoid membrane, one of the three meningeal layers that cover the brain and the spinal cord. [2] Primary arachnoid cysts are a congenital disorder whereas secondary arachnoid ...
Anatomical terminology. [edit on Wikidata] Arachnoid granulations (also arachnoid villi, and pacchionian granulations or bodies) are small outpouchings of the arachnoid mater and subarachnoid space into the dural venous sinuses of the brain. The granulations are thought to mediate the draining of cerebrospinal fluid (CSF) from the subarachnoid ...
Arachnoiditis. Arachnoiditis is an inflammatory condition of the arachnoid mater or 'arachnoid', one of the membranes known as meninges that surround and protect the central nervous system. The outermost layer of the meninges is the dura mater (Latin for hard) and adheres to inner surface of the skull and vertebrae. [1]
Anatomical terminology. [ edit on Wikidata] The subarachnoid cisterns are spaces formed by openings in the subarachnoid space, an anatomic space in the meninges of the brain. [ 1 ] The space is situated between the two meninges, the arachnoid mater and the pia mater. These cisterns are filled with cerebrospinal fluid (CSF).
A frontal horn cyst or connatal cyst is a cystic area in the brain. It is sometimes found in newborn babies with an incidence rate of 0.4-6%. It is adjacent to the superolateral margin of the body and frontal horn of the lateral ventricles, and is believed to represent a normal variant with no effect on neurological development.
A perivascular space, also known as a Virchow–Robin space, is a fluid-filled space surrounding certain blood vessels in several organs, including the brain, [1] potentially having an immunological function, but more broadly a dispersive role for neural and blood-derived messengers. [2] The brain pia mater is reflected from the surface of the ...
D002557. [edit on Wikidata] A cerebral shunt is a device permanently implanted inside the head and body to drain excess fluid away from the brain. They are commonly used to treat hydrocephalus, the swelling of the brain due to excess buildup of cerebrospinal fluid (CSF). If left unchecked, the excess CSF can lead to an increase in intracranial ...
Neurology. Foster Kennedy syndrome is a constellation of findings associated with tumors of the frontal lobe. [1] Although Foster Kennedy syndrome is sometimes called "Kennedy syndrome", [2] it should not be confused with Kennedy disease, or spinal and bulbar muscular atrophy, which is named after William R. Kennedy.