Ventricle madness
Ventricle that contains foramina named by two 19th century researchers
What is the 4th ventricle (Magendie and Luschka)
The only cranial nerve that emerges from the dorsal aspect of the brainstem
What is the trochlear nerve (cranial nerve IV)
>5mm cerebellar tonsillar herniation below the foramen magnum
What is Chiari I
This fluid filled space contains the optic chiasm
What is the chiasmatic (suprasellar) cistern
The most common non-traumatic cause of syringomyelia
What is Chiari I
In the transchoroidal approach to the third ventricle, the choroidal fissure is opened by incising between the choroid plexus and this structure
What is the fornix
Skull orifice containing III, IV, VI and superior opthalmic vein
What is the superior orbital fissue
Herniation of the cerebellar vermis, brainstem, and fourth ventricle through the foramen magnum
What is Chiari type II
The anterior choroidal artery can be found in this cistern
What is the crural cistern
This is the most common pathology in pediatric epilepsy surgery
What is focal cortical dysplasia
During neuroendoscopy of this lateral ventricle, you find that the thalmostriate vein is to patient's left side of the choroid plexus
What is the left lateral ventricle
The only cranial nerve that passes through the foramen magnum
What is the accessory nerve
Only in patients with neural tube defects (myelomeningoceles)
What is Chiari II
This fluid filled space has no cranial nerve but includes the anterior communicating artery
What is the lamina terminalis
White fibrous structure attached to the spinal cord medially and the dura laterally
"grey potato" that is a landmark for 3rd ventriculostomy
What is the tuber cinereum
In its extracrnial curse, VII gives off branches to the posterior belly of the digastric muscle and the stylohyoid before dividing into these 5 motor branches tio the scalp, face and anterior neck.
temporal, zygomatic, buccal, marginal mandibular, and cervical branches
Hypoplasia or aplasia of the cerebellum and tentorium cerebelli
What is Chiari IV
The interpeduncular and chiasmatic cisterns are separated by this arachnoid sheet that extends from the dorsum sellae to the anterior edge of the mamillary bodies
What is Liliequest's membrane
When considering the anticipated rate of fusion for the non-surgical management of an acute type 2 odontoid fracture, this is the most important clinic (i.e., not radiologic) factor
What is age
Formed by the two membranous layers of tela choroidea in the roof of the third ventricle
What is the velum interpositum
A "tract"-tive cranial "nerve" in disguise
What is the optic nerve (really a tract)
Foramen magnum encephalocele containing herniated cerebellar and brainstem tissue
What is Chiari III
The trochlear nerve and the basal vein of Rosenthal can be found together in this cistern
What is the Ambient cistern
A benign radiolucent skull lesion where normal bone is replaced by fibrous connective tissue
What is fibrous dysplasia