Small cell lung cancer with peripheral neuropathy as the first symptom: Two case reports

Table 5 Electromyography/evoked potential test report from Case 2, motor nerve conduction

Nerve/position	Recording position	Latent period, ms	Amplitude, μV	Conduction velocity, m/s	Distance, mm
R median nerve
Wrist	Abductor pollicis brevis muscle	3.33	6.0
Elbow	Abductor pollicis brevis muscle	7.50	5.5	54	225
R ulnar nerve
Wrist	Abductor digiti minimi	2.34	10.2
Below the elbow	Abductor digiti minimi	6.51	9.2	54	225
R peroneal nerve
Ankle	Extensor digitorum brevis	3.23	4.4
Under the capitulum of fibula	Extensor digitorum brevis	9.32	3.6	42	257
L peroneal nerve
Ankle	Extensor digitorum brevis	3.33	2.7
Under the capitulum of fibula	Extensor digitorum brevis	9.74	2.3	41	260
L tibial nerve
Ankle	Abductor hallucis	3.44	12.6
Popliteal fossa	Abductor hallucis	12.24	8.4	40	350
R tibial nerve
Ankle	Abductor hallucis	3.59	14.4
Popliteal fossa	Abductor hallucis	11.82	9.8	42	345

Diagnostic opinion: Electrophysiological changes of multiple peripheral nerve lesions involving the sensory nerves of the upper and lower limbs with demyelinating lesions. L: Left; R: Right.