Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
Case Reports
. 2012 Jul 30:2012:bcr2012006399.
doi: 10.1136/bcr-2012-006399.

Peripheral (limb) myokymic discharges in motor neuron disease

Javeria Rauf  1 , Junaid Akhtar, Bhojo Assumal Khealani, Liaquat Ali
Affiliations
Case Reports

Peripheral (limb) myokymic discharges in motor neuron disease

Javeria Rauf et al. BMJ Case Rep. .

Abstract

We present the case of a 28-year-old gentleman who presented with weakness and wasting in the right arm. He complained about painful cramps in his left leg but there were no sensory, visual or swallowing problems. Neurological examination was significant for asymmetric weakness of both upper and lower limbs and deep tendon reflexes were asymmetrically brisk. Initial laboratory investigations, MRI brain and MRI spine were normal. Electromyography revealed active denervation and chronic neurogenic motor unit action potential. Myokymic discharges were noted in the left deltoid muscle.

PubMed Disclaimer

Conflict of interest statement

Competing interests: None.

Figures

Figure 1
Figure 1
Sensory nerve conduction studies.
Figure 2
Figure 2
Motor nerve conduction studies.
Figure 3
Figure 3
Electromyography.
See this image and copyright information in PMC

References

    1. Whaley NR, Rubin DI. Myokymic discharges in amyotrophic lateral sclerosis (ALS): a rare electrophysiologic finding? Muscle Nerve 2010;41:107–9. - PubMed
    1. Bouche P, Le Forestier N, Maisonobe T, et al. Electrophysiological diagnosis of motor neuron disease and pure motor neuropathy. J Neurol 1999;246:520–5. - PubMed
    1. Kaji M, Shoji H. Myokymia. Nihon Rinsho 1993;51:2866–70. - PubMed
    1. Hosokawa S, Shinoda H, Sakai T, et al. Electrophysiological study on limb myokymia in three women. J Neurol Neurosurg Psychiatry 1987;50:877–81. - PMC - PubMed
    1. Lee CN. Reviewing evidences on the management of patients with motor neuron disease. Hong Kong Med J 2012;18:48–55. - PubMed

Publication types

MeSH terms