Extra 3 Flashcards
Describe Reye’s syndrome
Encephalopathy + liver damage + failure
Due to giving aspirin to kids after flu or chicken pox
Describe mechanism of transverse myelitis
Inflammation of neuron across length of spinal cord
Due to infections, MS or idiopathic
S+S, Dx + Tx of transverse myelitis
Affects sensory, motor + autonomic bilaterally
LP with increased WBC, MRI
Tx = cause
Describe mechanism of Charcot-marie tooth
Auto dom
Progressive hereditary disorder of PNS
Defective protein in myelin sheath
Onion bulb appearance of myelin
S+S of Charcot-marie tooth
Muscular atrophy
Weakness + foot drop - hammer toes
Peripheral neuropathy
Dx + Tx of Charcot-marie tooth
Dx = electromyography + nerve conduction studies + DNA test Tx = supportive
Mechanism + causes of GBS
Demyelinating disease of PNS
Develops after infection; campylobacter jejuni, mycoplasma pneumonia, CMV, EBV
S+S of GBS
Paraesthesia to touch + vibration
Weakness + loss of reflexes
Damage to cranial nerves
Autonomic - bladder / bowel
Dx + tx of GBS
Dx - LP increased protein/ albumin, nerve conduction studies + EMG
Tx = immunosuppressants, plasmophoresis, IVIG
Mechanism of neurofibromatosis
Fibrous tumors from nervous system
Type 1 = NF1 - 17
Type 2 = NF2 - 22
Auto dominant
Describe type 1 NF
Von Recklinhausen
Fibromas formed from Schwann cells, fibroblasts + immune cells Painless, mobile lumps under skin Cafe au lait spots Lisch nodules on iris Risk of seizures + learning difficulties
Describe type 2 NF
Brain, spinal cord + cranial nerve tumors
Bilateral acoustic neuroma (tinnitus + hearing loss)
Meningiomas - compress + cause seizures
Risk of cataracts + hamartomas
Describe Von hippel Lindau
genetic disease causing tumors in CNS, kidneys, adrenal glands + PNETS
Most commonly haemangioblastoma in retina + brain
Describe spinal muscular atrophy
Autosomal recessive
Reduced deep tendon reflexes, flaccid atrophy
Describe glioblastoma
Highly malignant brain tumor
Rapidly crosses corpus callosum
Pseudopallitating pattern
Describe meningioma
Subdural
Formed of calcifications called pseumomma bodies
Describe oligodendroglioma
Typically in frontal lobes (heavily myelinated)
Round nuclei give a fried egg appearance (chicken wire)