Neurology Flashcards
Most common example of mononeuropathy?
Carpal Tunnel Syndrome
Condition that can cause Carpal Tunnel Syndrome due to excess swelling in wrist?
Pregnancy, Hypothyroidism
Condition that can cause Carpal Tunnel Syndrome due to abnormal growth of carpal bones?
Acromegaly
Condition that can cause Carpal Tunnel Syndrome due to deposition of b2 microglobulin?
Hemodialysis
Which clinical presentation can help differentiate L5 radiculopathy from common fibular nerve radiculopathy?
Common fibular nerve = loss of foot eversion; L5 = loss of foot eversion + inversion
Compression of which structure leads to meralgia paresthetica?
Lateral cutaneous nerve … as it passes under the inguinal ligament
Clinical presentation of meralgia paresthetica?
Burning + numbness over lateral thigh
42 yo female presents with 6-week Hx of fever, cough, arthralgias; Reports R-sided facial droop on R; CXR shows nodular opacities in hilar regions – diagnosis?
Neurosarcoidosis
Which CN is most affected in Neurosarcoidosis?
CN 7
Which CN is most affected in Guillain Barre?
CN 6-7
Which CN is most affected in Diphtheria?
CN 9
Which CN is most affected in DM?
CN 3-4-6
Appearance of CXR and C-Spine XR in setting of Thoracic Outlet Obstruction?
Cervical rib
Appearance of next CT in setting of Thoracic Outlet Obstruction?
Scalene muscle hypertrophy
4 examples of mononeuropathy multiplex (2+ nerves affected)?
DM, RA vasculitis, polyarteritis nodosum, Lyme disease
Clinical presentation of mononeuropathy multiplex in Lyme disease?
New-onset foot drop
Example of condition that results from polyneuropathy?
Charcot-Marie-Tooth
Clinical presentation of Charcot-Marie-Tooth?
High arch, hammer toes
Inheritance pattern of Charcot-Marie-Tooth?
AD
Treatment of choice for Guillain-Barre Syndrome?
Plasma exchange; IVIG
Clinical presentation of Guillain-Barre Syndrome?
Ascending weakness
2 conditions that contraindicate IVIG treatment for Guillain-Barre Syndrome?
CHF, Renal failure
Condition that is a variant of Guillain-Barre Syndrome, but involves descending paralysis … (instead of ascending paralysis)?
Miller-Fischer Syndrome
Which 2 functions are preserved in ALS (…but not in MS)?
Ocular movements, Bladder/bowel function
Pattern of muscle weakness in Myasthenia gravis?
Weakness worse with repetition
Pattern of muscle weakness in Lambert-Eaton Syndrome?
Weakness better with repetition
DOC for Myasthenia gravis?
Physostigmine
Diagnostic test for Myasthenia gravis?
Tensilon test
Diagnostic test for Parkinson’s Disease?
Clinical
Initial therapy for Parkinson’s Disease?
Selective dopamine agonists
Value of Selective dopamine agonists as Initial therapy for Parkinson’s Disease?
Neuroprotective
Most effective therapy for Parkinson’s Disease?
Levodopa
Why is treatment with levodopa avoided during early stages of Parkinson’s Disease?
Wears off over time
Patient presents with bradykinesia, muscle rigidity, retropulsion, vertical gaze palsy – diagnosis?
Progressive Supranuclear Palsy
4 aspects of clinical presentation for Multiple System Atrophy?
Parkinson features, cerebellar dysfunction, orthostatic hypotension, urinary incontinence
Best treatment for orthostatic hypotension in Multiple System Atrophy?
Fludrocorticol … (mineralocorticoid)
4 most common origin locations for brain metastasis?
Lung, Breast, Skin, GI
Condition associated with multiple meningiomas?
NF-2
Why are meningiomas more common females?
Tumor cells have estrogen receptors
Cell of origin for meningiomas?
Arachnoid cells
Most common malignant brain tumor in children?
Medulloblastoma
Cell of origin for medulloblastoma?
Granular cell layer of cerebellum
Most common location of Medulloblastoma?
Cerebellum; 4th ventricle