Search results for “subarachnoid hemorrhages”
461 results
Article
Bochdalek's flower basket
Bochdalek's flower basket is the eponymous name for the incidental finding of protrusion of the choroid plexus through the foramina of Luschka. This is a relatively common finding.
It is an important normal variant to recognize as the presence of protruding calcified choroid tissue in the fourt...
Article
Call-Fleming syndrome
Call-Fleming syndrome, also called Call syndrome, essentially synonymous with the more current term reversible cerebral vasoconstriction syndrome (RCVS), although it is felt to be a subset of the former by some, representing the idiopathic RCVS.
Call-Flemming syndrome is therefore characterize...
Article
Cytotoxic lesions of the corpus callosum (CLOCCs)
Cytotoxic lesions of the corpus callosum (CLOCCs) represent a collection of disparate conditions that can cause signal change in the corpus callosum, usually involving the splenium.
Terminology
The term cytotoxic lesions of the corpus callosum (CLOCCs) has been proposed 12 as a more precise d...
Article
Cerebral angiography
Cerebral angiography is an interventional procedure for the diagnosis and/or treatment of intracranial pathology.
Indications
Cerebral digital subtraction angiography (DSA) is indicated in a variety of settings including:
diagnosis and treatment of:
aneurysms 1
acute ischemic stroke
vascul...
Article
Intracranial atherosclerotic disease
Intracranial atherosclerotic disease (ICAD), also known as intracranial atherosclerosis or intracranial atherosclerotic stenosis (ICAS), is the term applied to atherosclerosis of the large intracranial arteries and is a cause of recurrent ischemic stroke.
Epidemiology
Intracranial atherosclero...
Article
Peduncular vein
The peduncular veins (PV) or interpeduncular veins are veins of the brainstem and tributaries of the basal vein of Rosenthal, sometimes visible on imaging in the vicinity of the basilar artery tip and the proximal posterior cerebral artery.
Gross anatomy
The peduncular veins drain the cerebral...
Article
Medical abbreviations and acronyms (C)
This article contains a list of commonly used medical abbreviations and acronyms that start with the letter C and may be encountered in medicine and radiology (please keep both the main list and any sublists in alphabetic order).
A - B - C - D - E - F - G - H - I - J - K - L - M - N - O - P - Q...
Article
Sickle cell disease (cerebral manifestations)
Cerebral manifestations of sickle cell disease contribute significantly to the overall morbidity of the disease. Sickle cell disease is among the most common causes of stroke in the pediatric population.
For a general discussion of sickle cell disease, please refer to sickle cell disease.
Epid...
Article
Inferior petrosal sinus sampling
Inferior petrosal sinus sampling is an infrequently used method of confirming the presence of a hormonally active pituitary microadenoma when imaging alone has been insufficient. This technique is able to confirm that excess hormone (e.g. ACTH) is being produced by the pituitary and may also hel...
Article
Wyburn-Mason syndrome
Wyburn-Mason syndrome (also known as Bonnet-Dechaume-Blanc syndrome) is a rare, nonhereditary neurocutaneous disorder that typically presents with unilateral vascular malformations that primarily involve the brain, orbits and facial structures. It is currently classified as a cerebrofacial arter...
Article
Coup de poignard of Michon
Coup de poignard of Michon refers to spinal subarachnoid hemorrhage, usually as a result of a spinal arteriovenous malformation (AVM).
Clinical presentation
Presentation is with sudden excruciating back pain, akin to being stabbed with a dagger (poignard is French for dagger). It is the coroll...
Article
Suprasellar cistern
The suprasellar cistern (also known as the chiasmatic cistern or pentagon of basal cisterns) is one of the cerebrospinal fluid-filled subarachnoid cisterns.
Gross anatomy
Location
The suprasellar cistern is located above the sella turcica, under the hypothalamus and between the uncus of the t...
Article
Marshall classification of traumatic brain injury
The Marshall classification of traumatic brain injury is a CT scan derived metric using only a few features and has been shown to predict outcome in patients with traumatic brain injury.
This system was first published in 1992 1 building on findings from a large cohort of head injury cases des...
Article
Myocardial injury
Myocardial injury is defined by an elevation of cardiac troponin values above the 99th percentile upper reference limit. It is considered a prerequisite for the diagnosis of myocardial infarction but also an entity in itself and can arise from non-ischemic or non-cardiac conditions 1,2.
Termino...
Article
CT angiography of the cerebral arteries (protocol)
CT angiography of the cerebral arteries (also known as a CTA carotids or an arch to vertex angiogram) is a non-invasive technique that allows visualization of the internal and external carotid arteries and vertebral arteries and can include just the intracranial compartment or also extend down t...
Case
Traumatic subarachnoid hemorrhage
Published
09 Mar 2022
95% complete
CT
Case
Ruptured posterior communicating artery aneurysm complicated by vasospasm
Published
09 Apr 2022
100% complete
Nuclear medicine
CT
DSA (angiography)
Article
Leptomeningeal metastases
Leptomeningeal metastases, also known as carcinomatous meningitis and meningeal carcinomatosis, refers to the spread of malignant cells through the CSF space. These cells can originate from primary CNS tumors (e.g. in the form of drop metastases), as well as from distant tumors that have metasta...
Case
Superficial siderosis
Published
16 Sep 2023
77% complete
MRI
Case
Ruptured anterior communicating artery aneurysm with bilateral anterior cerebral artery infarcts
Published
08 Apr 2022
92% complete
CT
DSA (angiography)
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