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

  Diagnosis almost certain
Mohammad A. ElBeialy
Published 06 Jul 2013
77% complete
MRI
Case

Brain metastases: an extra-axial lesion mimmicking a meningioma

  Diagnosis almost certain
Mohammad A. ElBeialy
Published 09 Feb 2016
77% complete
MRI
Case

Ependymoma - infratentorial

  Diagnosis almost certain
Mohammad A. ElBeialy
Published 16 Jul 2013
80% complete
MRI
Case

Cerebral arteriovenous malformation

  Diagnosis certain
Bita Abbasi
Published 20 Jul 2013
86% complete
MRI
Case

Cerebellar metastases

  Diagnosis certain
Chia Wei Oh
Published 25 Jul 2013
92% complete
MRI
Case

Spinal schwannoma

  Diagnosis certain
Chia Wei Oh
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

  Diagnosis certain
Henry Knipe
Published 06 Oct 2013
92% complete
MRI
Case

Tentorium cerebelli subdural hematoma

  Diagnosis certain
RMH Core Conditions
Published 28 Nov 2013
95% complete
CT
Case

Post surgical extra-axial collection

  Diagnosis certain
RMH Core Conditions
Published 29 Nov 2013
89% complete
CT
Case

Falx cerebri and tentorium cerebelli subdural hematoma

  Diagnosis certain
Henry Knipe
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

  Diagnosis certain
Derek Smith
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...

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