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Also called cerebellar tonsillar ectopia, or tonsillar herniation. Although often congenital, Chiari malformation symptoms can also be induced due to physical head trauma, commonly from raised intracranial pressure secondary to a hematoma, or increased dural strain pulling the brain caudally into the foramen magnum.
Cerebellar tonsillar ectopia (CTE) is a term used by radiologists to describe cerebellar tonsils that are "low lying" but that do not meet the radiographic criteria for definition as a Chiari malformation.
An ectopia (/ ɛ k ˈ t oʊ p i ə /) is a ... Cerebellar tonsillar ectopia, aka Chiari malformation, a herniation of the brain through the foramen magnum, which may ...
In addition to tonsillar ectopia, patients with this entity also have caudal descent of the brainstem. A significant proportion of these patients require a second surgery as a result of persistent syringomyelia. [30] [36] Headache and neck pain, similar to Chiari I II This is the only type also known as an "Arnold–Chiari" malformation.
Cerebellar tonsillar ectopia shares many of the same symptoms as CSF leak, [58] but originates either congenitally or from trauma, including whiplash strain to the dura. [69] An alternate method of locating the site of a CSF leak is to use heavily T2-weighted MR myelography. [24]
In healthy tonsils the openings of the crypts are fissure-like, and the walls of the lumina are in apposition. A computerized three-dimensional reconstruction of the palatine tonsil crypt system showed that in the centre of the palatine tonsil are tightly packed ramified crypts that join with each other, while on the periphery there is a rather ...
The tonsils are a set of lymphoid organs facing into the aerodigestive tract, which is known as Waldeyer's tonsillar ring and consists of the adenoid tonsil (or pharyngeal tonsil), two tubal tonsils, two palatine tonsils, and the lingual tonsils. These organs play an important role in the immune system.
The tonsillar artery (or tonsillar branch of the facial artery) is (usually) a branch of the facial artery (though it sometimes arises from the ascending palatine ...