chapter 8 pt2
What is the most common cause of nontraumatic intraparenchymal hemorrhage in persons under age 20?
AVM
Which of the following is a slow-growing, benign tumor that occurs on the eighth cranial nerve?
Acoustic neuroma.
Which of the following degenerative neurologic diseases causes widespread selective atrophy and loss of motor nerves that eventually leads to paralysis and death
Amyotrophic lateral sclerosis (Lou Gehrig).
Chordoma
Arises from the embryonic neural tube
Which of the following is the most common type of glioma
Astrocytoma.
Meningioma
Benign tumor arising from arachnoid membrane
Le Fort fracture
Bilateral horizontal fractures of maxillae
Which of the following facial fractures is usually caused by a direct blow to the orbit
Blow-out fracture
Which type of skull fracture can cause separation of the suture
Diastatic.
What position is recommended to obtain trauma images of the facial bones when the patient cannot be positioned upright
Dorsal decubitus
Which of the following involves bilateral and horizontal fractures of the maxillae
Le Fort fracture.
What are the most common primary malignancies that metastasize to the brain?
Lung and breast.
Which benign CNS tumor arises from arachnoid lining cells and is attached to the dura
Meningioma
An acute inflammation of the pia mater and arachnoid is called
Meningitis
What is the most common facial bone fracture
Nasal bones
What position is recommended to obtain facial bone radiographic images to evaluate facial trauma
Upright
A condition in which brain impulses are disturbed and that causes symptoms ranging from loss of consciousness to violent seizures is
epilepsy
A focal neurologic defect that completely resolves within 24 hours is known as a
transient ischemic attack (TIA)
Which of the following is the primary imaging modality used to examine head injuries (trauma)?
CT.
Which of the following is used to initially screen patients suspected of a transient ischemic attack
Color-flow Doppler ultrasound.
Viral inflammation of the brain is termed
Encephalitis
Which type of primary brain tumor usually arises in the walls of the fourth ventricle in children and in the lateral ventricles in adults?
Ependymoma.
Which of the following is caused by arterial bleeding in the cranium
Epidural hematoma
Cerebrospinal fluid is formed in the arachnoid villi
F
Radiography of the skull for fractures is essential to the diagnosis of associated brain injury.
F
The cerebellum is the largest portion of the brain.
F
Tripod fracture
Fracture that separates zygoma from other facial bones
What is the most common primary malignant brain tumor
Glioma.
Paralysis on one side of the body is termed
Hemiplegia
Which of the following CNS degenerative disorders has the CT pathologic hallmark of atrophy of the caudate nucleus and putamen, causing focal dilatation of the frontal horns
Huntington's disease
Which of the following types of gliomas are slow growing and tend to calcify
Oligodendrocytomas.
Blow-out fracture
Results from direct blow to orbit
Which projection is useful in demonstrating fractures of the zygomatic arches
SMV
Astrocytoma
Slow-growing and most common form of glioma
Acoustic neuroma
Slow-growing, benign tumor of eighth cranial nerve
What is the most common cause of a subdural empyema
Spread of infection from frontal or ethmoid sinuses.
Stellate fracture
Star-shaped fracture with multiple fracture lines radiating from a central point
Which of the following is caused by venous bleeding in the cranium
Subdural hematoma.
Bilateral fractures are common in the mandible
T
Encephalitis is most commonly caused by the herpes simplex virus.
T
MRI is considered the best imaging modality for suspected brain tumors
T
Sinus infections can spread to the brain and cause an empyema or abscess
T
The middle meningeal layer is the arachnoid membrane
T
The most common type of primary brain tumor is a glioma
T
The nasal bones are the most commonly fractured facial bones
T
Where is the most common site for traumatic arteriovenous fistulas to arise in the CNS?
The internal carotid artery and cavernous sinus
Which fracture separates the zygoma from the other facial bones?
Tripod
A brain abscess is usually the result of a
chronic infection of sinuses, middle ear, or mastoids or systemic infection (that is, pneumonia)
What term is used to denote the sudden and dramatic development of a focal neurologic deficit?
stroke
A rupture of a berry aneurysm is a major cause of
subarachnoid hemorrhage
