Items tagged “neurosurgery”
38 results found
Article
Open ring sign
The open ring sign is a relatively specific sign for demyelination, most commonly multiple sclerosis (MS), and is helpful in distinguishing between the causes of ring-enhancing lesions.
Radiographic features
The enhancing component is thought to represent advancing front of demyelination and ...
Article
Subarachnoid hemorrhage
Subarachnoid hemorrhage (SAH) is a type of extra-axial intracranial hemorrhage and denotes the presence of blood within the subarachnoid space.
Epidemiology
Patients tend to be older middle age, typically less than 60 years old 2. Subarachnoid hemorrhage accounts for 3% of stroke and 5% of str...
Article
Subdural hemorrhage
Subdural hemorrhage/hematoma (SDH) is a collection of blood accumulating in the subdural space. Subdural hemorrhage can happen in any age group, is mainly due to head trauma and CT scans are usually sufficient to make the diagnosis. Prognosis varies widely depending on the size and chronicity of...
Article
Subfalcine herniation
Subfalcine herniation, also known as midline shift or cingulate hernia, is the most common type of cerebral herniation. It is generally caused by unilateral frontal, parietal or temporal lobe disease that pushes ipsilateral cingulate gyrus beneath the free edge of the falx cerebri to the opposit...
Article
Intracerebral hemorrhage
An intracerebral hemorrhage, or intraparenchymal cerebral hemorrhage, is a subset of an intracranial hemorrhage as well as of stroke, defined by the acute accumulation of blood within the brain parenchyma.
This article concerns non-traumatic intracerebral hemorrhages; traumatic hemorrhagic cere...
Article
Odontoid fracture
Odontoid process fracture, also known as a peg or dens fracture, occurs where there is a fracture through the odontoid process of C2.
Pathology
The mechanism of injury is variable, and can occur both during flexion or extension, and with or without compression 5.
Classification
There are two...
Case
Foramen magnum meningioma
Published
06 Jul 2013
77% complete
MRI
Case
Brain metastases: an extra-axial lesion mimmicking a meningioma
Published
09 Feb 2016
77% complete
MRI
Case
Ependymoma - infratentorial
Published
16 Jul 2013
80% complete
MRI
Case
Cerebral arteriovenous malformation
Published
20 Jul 2013
86% complete
MRI
Case
Cerebellar metastases
Published
25 Jul 2013
92% complete
MRI
Case
Spinal schwannoma
Published
30 Jul 2013
92% complete
CT
MRI
Case
L4/5 left paracentral disc extrusion with left L5 and S1 nerve root compression and left S1 nerve root enhancement
Published
06 Oct 2013
92% complete
MRI
Case
Tentorium cerebelli subdural hematoma
Published
28 Nov 2013
95% complete
CT
Case
Post surgical extra-axial collection
Published
29 Nov 2013
89% complete
CT
Case
Falx cerebri and tentorium cerebelli subdural hematoma
Published
03 Jan 2014
89% complete
CT
Article
Cauda equina syndrome
Cauda equina syndrome is considered an incomplete cord syndrome, even though it occurs below the conus. Cauda equina syndrome refers to a collection of symptoms and signs that result from severe compression of the descending lumbar and sacral nerve roots. It is most commonly caused by an acutely...
Article
Spinal epidural abscess
Spinal epidural abscess represents infection of the epidural space, located between the spinal dura mater and the vertebral periosteum. It can present with rapidly deteriorating neurological function due to compression. Imaging is best performed with MRI and emergency surgery is often required. ...
Case
Acute subdural hemorrhage - on warfarin
Published
12 Sep 2014
100% complete
CT
Article
Uncal herniation
Uncal herniation is a subtype of transtentorial downward brain herniation that involves the uncus, usually related to cerebral mass effect increasing the intracranial pressure.
Clinical presentation
pupils and globe clinical features 3
initially, an ipsilateral dilated pupil that is unrespons...