Items tagged “neurosurgery”

27 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. Interestingly open ring enhancement is not seen in neuromyelitis optica (NMO).  Radiographic features The en...
Article

Subarachnoid haemorrhage

Subarachnoid haemorrhage (SAH) is one of the types of extra-axial intracranial haemorrhage 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 haemorrhage accounts for 3% of stroke ...
Article

Subdural haemorrhage

Subdural haemorrhage (SDH) is a collection of blood accumulating in the subdural space, the potential space between the dura and arachnoid mater of the meninges around the brain. SDH can happen in any age-group, is mainly due to head trauma and CT scans are usually sufficient to make the diagnos...
Article

Subfalcine herniation

Subfalcine herniation, the most common cerebral herniation pattern, is characterised by displacement of the brain (typically the cingulate gyrus) beneath the free edge of the falx cerebri due to raised intracranial pressure.  Radiographic features CT The easiest method of evaluating for subfa...
Article

Intracerebral haemorrhage

An intracerebral haemorrhage, or intraparenchymal cerebral haemorrhage, is a subset of an intracranial haemorrhage. This can encompass a number of entities that share the acute accumulation of blood in the parenchyma of the brain. The aetiology, epidemiology, treatment and prognosis vary widely ...
Article

Odontoid fracture

Odontoid process fracture, also known as the 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 with or without compression 5. Classification There are two cl...
Case

Foramen magnum meningioma

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

Brain metastases: an extra-axial lesion mimmicking a meningioma

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

Infratentorial ependymoma

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

Cerebral arteriovenous malformation

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

Cerebellar metastases

 Diagnosis certain
Dr Lawrence Chia Wei Oh
Published 25 Jul 2013
95% complete
MRI
Case

Spinal schwannoma

 Diagnosis certain
Dr Lawrence Chia Wei Oh
Published 30 Jul 2013
92% complete
CTMRI
Case

L4/5 left paracentral disc extrusion with left L5 and S1 nerve root compression and left S1 nerve root enhancement

 Diagnosis certain
Dr Henry Knipe
Published 06 Oct 2013
95% complete
MRI
Case

Right tentorium cerebelli subdural haematoma

 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
92% complete
CT
Case

Falx cerebri and tentorium cerebelli subdural haematoma

 Diagnosis certain
Dr Henry Knipe
Published 03 Jan 2014
89% complete
CT
Article

Cauda equina syndrome

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 considered a diagnostic and surgical emergency.  Epidemiology Cauda equina syndrome is rare with prevalence estimated at approximately 1...
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 haemorrhage - on warfarin

 Diagnosis certain
Dr Derek Smith
Published 12 Sep 2014
100% complete
CT

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