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Tarlov cysts, are type II innervated meningeal cysts, cerebrospinal-fluid-filled (CSF) sacs most frequently located in the spinal canal of the sacral region of the spinal cord (S1–S5) and much less often in the cervical, thoracic or lumbar spine. They can be distinguished from other meningeal cysts by their nerve
A posterior meningocele (/ m ɪ ˈ n ɪ ŋ ɡ ə ˌ s iː l /) or meningeal cyst (/ m ɪ ˈ n ɪ n dʒ i əl /) is the least common form of spina bifida. In this form, a single developmental defect allows the meninges to herniate between the vertebrae.
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]
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Tarlov first noticed the cysts while doing a postmortem examination of 30 filum terminale specimens in 1938, and he published his findings in the Archives of Neurology & Psychiatry. He initially believed the cysts were the result of meningeal diverticula and long arachnoid prolongations.
Cutaneous meningioma, also known as heterotopic meningeal tissue, and rudimentary meningocele [1] is a developmental defect, and results from the presence of meningocytes outside the calvarium. [ 2 ] : 622
Here's what bacterial meningitis is, how it's different from viral and other types of meningitis, and what treatment can be expected.
The types of cancers that are most commonly associated with meningeal spread include breast and lung cancer, melanoma skin cancer, lymphomas, and leukemia. [3] Dermoid cysts near the brain or spinal cord, a type of cyst containing developmentally mature tissue, may leak their contents into the subarachnoid space thus leading to meningeal ...