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Tarlov cysts are most commonly located in the S1 to S4/S5 region of the spinal canal, but can be found along any region of the spine.They usually form on the extradural components of sacrococcygeal nerve roots at the junction of dorsal root ganglion and posterior nerve roots and arise between the endoneurium and perineurium. [10]
Arachnoid cysts can be found on the brain or on the spine. Intracranial arachnoid cysts usually occur adjacent to the arachnoidal cistern. [23] Spinal arachnoid cysts may be extradural, intradural, or perineural and tend to present with signs and symptoms indicative of a radiculopathy. [23]
The etiology of dural ectasia is unknown, but it has been suggested that is due to increased hydrostatic pressure, [8] general weakened connective tissue [9] or as a result of the pulsatile flow of cerebrospinal fluid on weakened spinal dura. [10] Dural ectasia is common in Marfan syndrome, [3] occurring in 63–92% of people with the syndrome ...
A systematic review found moderate quality evidence that spinal manipulation is effective for the treatment of acute lumbar radiculopathy [17] and cervical radiculopathy. [18] Only low level evidence was found to support spinal manipulation for the treatment of chronic lumbar radiculopathies, and no evidence was found to exist for treatment of ...
This is the most common cause of syringomyelia, where the anatomic abnormality, which may be due to a small posterior fossa, causes the lower part of the cerebellum to protrude from its normal location in the back of the head into the cervical or neck portion of the spinal canal. A syrinx may then develop in the cervical region of the spinal cord.
Cervical spinal nerve C7 controls triceps and wrist extension. Cervical spinal nerve C8 helps control the hand. [18] The cervicocranial syndrome occurs when symptoms arise due to cervical vertebrae damage (misalignment, collapse, shift or disease, such as tumor) resulting in the improper functioning of the cervical spinal nerves.
The symptoms are occipital headache, cough, middle ear effusion, cervical myalgia, and halitosis, i.e. bad breath. When there is an enlargement of the cyst, it causes symptoms like nasal obstruction, post-nasal discharge with foul-smelling odour, blockage of the Eustachian tube causing otalgia and secretory otitis media, retro-orbital pain.
These classification of cysts are embedded in the endoderm (inner layer) and the ectoderm (outer layer) of the cranial or spinal cord germ layers.They normally take over the neuraxis, the axis of the central nervous system that determines how the nervous system is placed, which allows the cysts to infiltrate the CNS tissues. [3]