What primary cancer accounts for most brain mets?
Lung cancer (small cell lung CA)
- Compression of which nerve causes Meralgia Paresthetica?
- How does it present?
- Risk factors?
- Lateral femoral cutaneous nerve.
- Presents as pain and sensory loss on the lateral thigh
- Risk factors - tight pants, pregnancy, obesity.
What is the classic EMG pattern in Radiculopathy?
hint there are three
- Positive sharp waves (spontaneous activity emanating from denervated muscle fibers)
- Fibrillation potentials
- Decreased recruitment of segmental myotomal distribution.
Tabes Dorsalis, a late manifestation of Syphillis, presents with what triad?
Lightning pains
Ataxia
Urinary Incontinence
What are Argyll Robinson Pupils? What disease do you see it in?
Pupils constrict to accommodation but not to light.
Syphilis
What is Todd’s Paralysis?
Brief period of hemiparesis following an seizure. Symptoms usually dissipate within 48 hours and only supportive treatment is necessary.
What are the Neurodegenerative Trinucleotide expansion diseases?
- Huntingtons
- Fragile X
- Myotonic dystrophy
- Freidrich’s ataxia
(also … X-linked Spinobulbar muscular atrophy; dentatorubral-pallidolyusian atrophy and Spinocerebellar atrophies 1,2,3,6 and 7)
What two signs suggest a basilar skull fracture?
Raccoon eyes
“Battle sign” = bruising over mastoid (behind ear)
What are the first line agents for treatment of muscle spasticity in MS?
Lioresal (Baclofen) Gabapentin Diazepam Clonidine Tizanidine Dantrolene
(all these agents are also used to treat spasticity in general)
What is the triad of Kluver-Bucy syndrome and what lesion of the brain produces it?
What are the two common etiologies?
- Hyperorality
- Placidity
- Hypersexuality
Produced by lesion to bilateral Amygdaloid bodies and the inferior temporal cortex.
Etiology = Alzheimers dementia and stroke.
