Revise Radiology Neuro 1 Flashcards
Multiple cystic spaces w/fluid levels in spine
Spinal cavernous malformation
Radiation can cause
Meningioma
Tectal gliomas associated with
NF1
Intracranial microhameorrhages
Cerebral amyloid angiopathy
Butterfly wing pattern in cerebellar and middle peduncles
Heroin leukoencephalopathy
Child, cognitive decline, cerebral plaques
Schilder disease/diffuse myelinoclastic sclerosis
Rx for CVST with haemorrhage
Heparin
TB encephalopathy
Multiple brainstem and cerebellar lesions
Caput medusa in brain
DVA
Air splitting the frontal lobes, post op
Tension pneumocephalus
Supra & Intracellular multiloculated cystic mass with solid and calcific areas
Adamantinomatous craniopharyngioma
Peripherally enhancing unilocular cystic lesion in the Sella
Rathke Cleft CystD
Diffuse hypomyelination & tigroid appearance
PMD
Hangman #
Pars # of C2, due to hyperextension and axial loading. Can cause bilateral arm neurology
Uncal herniation
Causes CN3 palsy.
Ipsilateral pupil dilatation –> Bilateral –> ptosis –> vertical gaze palsy
Astrocytoma Rx
Immediate surgery
Astrocytoma vs Ependymoma location
Astrocytomas are eccentric
Ependymomas are central
HSVE can cause
Haemorrhage
Sac like protrusion through the foramen of Magendie
Blake pouch cyst
Deep branch off ACA, can get damaged by ACOM aneurysm clipping
Recurrent artery of Heubner
Sunken brain post craniectomy
Paroxysmal brain herniation
Intracranial hypotension Ix:
MR Myelography with intrathecal gadolinium to find leak
Persistent oedema following spinal AVF treatment
Can persist normally for 4/12. Follow up clinically.
Hernia through temporal incisura
Uncal herniation
?Malignant pineal mass on imaging, Ix?
Biopsy and radiation therapy
Severe cerebellar hypoplasia
Chiari IV
Commonest initial finding in Wilsons (MRI)
T1 hyperintensity in the basal ganglia
Ependymomas can occur (where)
Lateral ventricles
Downward herniation of the medulla & vermis into encephalocele
Chiari III
Heterogenous on T1&T2, contain fat and calcium
Germinoma
Klippel-Trennaunay-Webber associated with..
Spinal AVM
Downward cerebellar tonsil and vermis herniation
Chiari II
Between optic chiasm and mamillary bodies, T1/T2 isointense, non-enhancing
Hypothalamic Hamartoma
T1/T2 hyperintense, peripheral enhancement, suprasellar
Dermoid cyst
Diffuse cerebral atrophy with symmetric T2 hyperintensity
HIV encephalopathy
Neurofibroma vs Schwannoma
Schwannoma’s enhance