Answers from Qbank Neuro
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- T or F? Meningiomas often incite an osteoblastic reaction in the overlying cranial bones
- True
- Negri bodies?
- Rabies
- T or F? Glioblastoma is an astrocytoma
- True
- Which tumor can cause a butterfly lesion crossing between the cerebral hemispheres?
- Glioblastoma multiforme
- Tumor with whorls of cells and scattered psammoma bodies..
- Meningioma
- VDRL?
- Syphilis
- Subarachnoid hemorrhage and/or seizures involving the cerebral hemispheres
- AV malformation
- Tuberous sclerosis?
- Neurocutaneous disorder - tubers (hamartomas in the brain, skin, pancreas, and cardiac rhabdomyomas
- Cerebellar angiomas associated with...
- von Hippel-Lindau
- Nevus flammeus associated with..?
- Sturge-Weber (port-wine nevus_
- T or F? Intermittently raised pressure hydrocephalus classically causes memory loss, urinary incontinence, and gait abnormalities
- True
- Failure of upward gaze?
- Pinealoma
- Bilateral loss of pain and temp sensation in the upper extremities - what malformation?
- Arnold-Chiari --> syringomyelia
- The atrophy in Pick's disease affects which lobes?
- Frontal, temporal
- Classic triad of Parkinson's
- Tremors, rigidity, and akinesia
- Anterograde amnesia and confabulation
- Korsakoff syndrome
- Subependymal giant cell astrocytoma
- Tuberous sclerosis
- Describe primary CNS lymphoma lesions in AIDS patients?
- Multicentric, may involve leptomeninges
- T or f? Friedreich's ataxia is related to atrophy of the spinal cord.
- True
- Cystic brain lesion filled with dark, oily fluid...
- Craniopharyngioma
- Half of all intraparenchymal hemorrhages involve the...
- Basal ganglia and internal capsule
- Demyelination of the......can follow overly rapid correction of severe hyponatremia?
- central ponsq
- Arnold-Chiari type 2?
- More severe, cerebellar vermis and medulla are displaced through the foramen magnum
- Elongated intracytoplasmic neuronal inclusions
- Negri bodies --> rabies
- Intracytoplasmic spherules composed of paired helical filaments?
- Pick bodies
- Multinucleated giant cells are typical in which viral encephalitis?
- HIV encephalitis
- Fried egg cells in a brain tumor?
- Oligodendroglioma
- Histologic progression of MS
-
1. Acute - Lymphohistiocytic infiltration and myelin breakdown
2. Hyperplastic gliosis (astrocytosis) - GEMISTOCYTES - Brain tumor in kids with evidence of both neuronal and glial differentiation?
- Medulloblastoma
- Associate neurofibromas with...?
- Neurofibromatosis type 1
- Associate meningiomas with...?
- Breast cancer, high estrogen states
- Associate acoustic neuromas with...?
- Neurofibromatosis type II
- definition of papilledema?
- Swelling of the optic disk usually due to increased ICP
- How do Abscesses look on CT?
- White rings around black low-attenuation centers in the brain...?
- What could explain a catastrophic hemorrhage in an Alzheimer's patient?
- Amyloid angiopathy
- Corkscrew-shaped eosinophilic fibers
- Rosenthal fibers - seen in pilocytic astrocytoma, reactive gliosis
- Paired helical filaments in neurofibrillary tangles are due to...?
- Abnormal phosphorylation of tau
- Retinal angioma in which syndrome?
- von Hippel Lindau
- This brain tumor shows necrosis and hemorrhage on biopsy...
- Glioblastoma multiforme
- Location of glioblastoma in adults? Kids?
-
Adults - cerebral cortex
Kids - Brainstem - Ki-67
- nuclear factor - used to determine neoplastic replicative activty
- HSV encephalitis affects which parts of the brain?
- Lower portions of cerebral cortex --> temporal lobes and base of the frontal lobes
- chorda tympani branch of VII controls salivation from...?
- submandibular and sublingual glands
- Which nerve runs closest (laterally) to the pituitary?
- Abducens
- Which nerve lies in the tonsillar fossa?
- Glossopharyngeal
- Which cranial nerves emerge from the cerebellopontine angle?
- Facial and vestibulocochlear
- Which nerve moves the hyoid bone anteriorly to open the pharynx?
- C1 - ansa cervicalis
- Olfactory bulb sends axons to...?
- Pyriform cortex
- Median nerve passes through which muscle after the elbow?
- Pronator teres
- Satiety center?
- Ventromedial nucleus
- Locked-in syndrome is caused by a lesion in...
- the pons (ventral)
- What passes through the greater sciatic foramen?
- Superior gluteal nerve (above the piriformis) and the sciatic nerve (below the piriformis
- Parinaud's syndrome
- Affects vertical gaze center - dorsal midbrain (superior colliculi)
- Which nerve is required to make the 'kuh' sound?
- Vagus - raises the palate
- Nail of the index finger is innervated by...?
- Median nerve
- chemoreceptor trigger zone - located where?
- floor of 4th ventricle
- Innervation from upper part of posterior pharynx? Lower part?
-
IX
X - Myasthenia gravis mechanism
- Autoimmune damage to the acetylcholine receptor in the NMJ
- CMV lab work
-
India ink
Urease positive - Subacute sclerosing panencephalitis
- Rare late complication of measles infection at an early age
- Which two amoeba have a propensity for causing meningoencephalitis?
- Naegleria fowleri and Acanthamoeba
- Neuroepithelial cells?
- Astrocytes and oligodendrocytes (both derived from glioblasts)
- Chlamydia induced blindness
- Corneal infection, then scarring
- Ventriular-peritoneal shunt infection?
- Staph epidermidis
- Mississippi river bed yeast
- Crypto
- Embolization from infective endocarditis typically causes abscesses in which lobe?
- Parietal
- Most likely cause of active toxo infection?
- Reactivation of latent infection
- neostigmine mechanism of action?
- carbamylation of AChesterase
- Primidone has a cross-sensitivity to...?
- Phenobarbital
- OD on TCAs could cause/
- Lethal arrhythmias
- Immediate lowering of intraocular pressure?
- Acetazolamide
- Phenelzine?
- MAO inhibitor
- Trihexyphenidyl?
- Anti-muscarinic used in Parkinson's
- HTN emergency?
- >130 mm HG DIASTOLIC pressure
- Mechanism of sumatriptan?
- Serotonin agonist
- Reinforcing effects of ampethamines caused by?
- Dopamine release
- Which antidepressant is contraindicated in patients with bulimia or anorexia?
- Bupropion
- Neorucyticercosis?
- Taenia solium infection (cysts are involved in the CNS)...most common parasitic infection of the CNS... most frequently encountered in Mexico, Southeast Asia, etc.
- Strep agalactiae?
- Group B strep
- Alar plate forms what?
- dorsal spinal cord
- Bilateral acoustic neuromas are associated with...?
- Neurofibromatosis type II --> 22qn (all the 2's...bi-lateral, nfm type 2, 22q, etc)
- Perivenous microglial involvement with demyelination...?
- Post-infectious (ie measles) encephalomyelitis
- encysted bradyzoites?
- toxoplasmosis
- Anterolateral part of the spinal cord affects which muscle group?
- Distal extensors