FN: Muscle weakness differential Flashcards
1
Q
Locational causes
A
- Cerebrum/Brainstem
- Cord
- Anterior horn
- Roots/Plexus
- Motor Nerves
- NMJ
- Muscle
2
Q
Cerebrum/Brainstem causes of muscle weakness
A
- Vascular: infarct/Haemorrhage
- Inflammation: MS
- SOL
- Infection: encephalitis, abcess
3
Q
Cord causes of muscle weakness
A
- Vascular: anterior spinal artery infarct
- Inflammation: MS
- Injury
4
Q
Anterior Horn
A
MND
Polio
5
Q
Roots/Plexus caues
A
- Spondylosis
- Cauda equina syndrome
- Carcinoma
6
Q
Motor Nerves
A
Mononeuropathy: e.g. compression
Polyneuropathy: GBS, CMT
7
Q
NMJ causes
A
GB
LEMS
Botulism
8
Q
Muscle causes
A
Toxins: steroids
Poly-/Dermo-myositis
Inerited: DMD, BMD, FSH