Peripheral Neuropathies

Question 1

aetiology of peripheral neuropathies?

Answer 1

Diabetes
Alcohol
Vitamin deficiency
Infective
Drugs

Question 2

Median nerve palsy presentation?

Answer 2

• loss of precision grip

- sensory loss of radial 3.5 fingers and palm

Question 3

ulnar nerve palsy presentation?

Answer 3

• Ulnar claw
• cannot do good luck fingers crossed sign
• sensory loss over medial 1.5 fingers and ulnar side of hand

Question 4

Radial nerve palsy presentation?

Answer 4

• wrist and finger drop

Question 5

aetiology of ulnar nerve palsy?

Answer 5

elbow trauma

Question 6

aetiology of radial nerve palsy?

Answer 6

compression against humerus

Question 7

Brachial plexus palsy?

Answer 7

Pain/paraesthesia and weakness in affected arm by variable distribution

Question 8

aetiology of brachial plexus palsy?

Answer 8

trauma, radiotherapy, prolonged heavy rucksack

Question 9

phrenic nerve palsy presentation?

Answer 9

SOB with raised hemidiaphragm on CXR

Question 10

aetiology of phrenic nerve palsy?

Answer 10

lung cancer, myeloma

Question 11

lateral cutaneous nerve of the thigh palsy presentation

Answer 11

meralgia peraesthetica : antero-lateral burning thigh pain from entrapment under the inguinal ligament

Question 12

sciatic nerve palsy presentation?

Answer 12

sensory loss below the knee laterall

foot drop

Question 13

aetiology of sciatic nerve palsy?

Answer 13

pelvic tumours, fractures

Question 14

Common peroneal palsy presentation?

Answer 14

foot drop
weak ankle dorsiflexion/eversion
sensory loss over dorsal foot

Question 15

common peroneal palsy aetiology?

Answer 15

trauma, sitting cross legged

Question 16

tibial nerve palsy presentation?

Answer 16

inability to tiptoe (plantarflexion)
inability to invert foot or flex toes
sensory loss over sole