Create issue ticket

244 Possible Causes for Electromyogram Abnormal, Presynaptic Defect at the Neuromuscular Junction

  • Lambert Eaton Myasthenic Syndrome

    It is distinguishable from normal muscle cramps by the finding of prolonged bursts of high frequency repetitive muscle action potentials on the electromyogram (EMG).[doi.org] A c.923C T variant affecting an adjacent residue (p.Pro308Leu) produced a presynaptic neuromuscular junction defect and a dominant hereditary motor neuropathy in a second[ncbi.nlm.nih.gov] Classification of congenital myasthenic syndrome Usually classified according to the defective site of the neuromuscular junction, it is often divided into presynaptic, synaptic[intechopen.com]

  • Peripheral Neuropathy

    POEMS syndrome (Peripheral neuropathy, Organomegaly, Endocrinopathy, M protein, Skin changes) is a rare plasma cell disorder with multisystem involvementA 40-year-old man with a chronic history of unexplained peripheral neuropathy , presented with exudative ascites.He was found to have an incidental osteolytic lesion[…][ncbi.nlm.nih.gov]

    Missing: Presynaptic Defect at the Neuromuscular Junction
  • Muscular Dystrophy

    Becker muscular dystrophy is an inherited disorder that involves slowly worsening muscle weakness of the legs and pelvis. Becker muscular dystrophy is very similar to Duchenne muscular dystrophy. The main difference is that it gets worse at a much slower rate and it is less common. The disorder is passed down[…][web.archive.org]

    Missing: Presynaptic Defect at the Neuromuscular Junction
  • Duchenne Muscular Dystrophy

    The longer survival of patients with Duchenne muscular dystrophy due to advances in clinical care has increased the incidence of Duchenne muscular dystrophy-associated cardiomyopathy, a nearly consistent feature in the third decade of life. A 26-year-old patient with Duchenne muscular dystrophy experienced[…][ncbi.nlm.nih.gov]

    Missing: Presynaptic Defect at the Neuromuscular Junction
  • Primary Lateral Sclerosis

    Electromyogram ( EMG ). During an EMG , your doctor inserts a needle electrode through your skin into various muscles.[drugs.com] Electromyogram ( EMG ). During an EMG, your doctor inserts a needle electrode through your skin into various muscles.[drugs.com] Your doctor may also order an MRI to look for other causes of your symptoms, such as structural abnormalities, multiple sclerosis or spinal cord tumors.[drugs.com]

    Missing: Presynaptic Defect at the Neuromuscular Junction
  • Bell's Palsy

    Practice Essentials Bell palsy, also termed idiopathic facial paralysis (IFP), is the most common cause of unilateral facial paralysis. It is one of the most common neurologic disorders of the cranial nerves (see the image below). In the great majority of cases, Bell palsy gradually resolves over time, and its cause is[…][emedicine.com]

    Missing: Presynaptic Defect at the Neuromuscular Junction
  • Stiff-Person Syndrome

    […] that may be causing pinched nerves an electromyogram, which can help your doctor evaluate how well the muscles and nerves are working an ultrasound, which can help your doctor[healthline.com] She walked with an abnormal “tin solider” gait. Findings on magnetic resonance imaging of her brain and spine as well as electromyograms were normal.[doi.org] , which can help your doctor check for muscle damage and the presence of certain autoimmune disorders that can cause rigidity MRI and CT scans, which can reveal any bone abnormalities[healthline.com]

    Missing: Presynaptic Defect at the Neuromuscular Junction
  • Becker Muscular Dystrophy

    […] changes in the structure of the muscle cells Tests that stain the muscle sample can be used to visualize any muscle proteins present Electromyogram (EMG): Another diagnostic[dovemed.com] […] muscle biopsy, a muscle sample from an individual is removed and examined under a microscope This technique can help to distinguish BMD from other diseases by identifying any abnormal[dovemed.com]

    Missing: Presynaptic Defect at the Neuromuscular Junction
  • Progressive Muscular Atrophy

    We present the electrophysiologic data at baseline of 37 patients who were included in our prospective study on sporadic adult-onset progressive muscular atrophy (PMA). The aim was to correlate electrophysiological signs of lower motor neuron (LMN) loss with clinical signs of LMN loss, and to determine the[…][ncbi.nlm.nih.gov]

    Missing: Presynaptic Defect at the Neuromuscular Junction
  • Secondary Myopathy

    Although changes seen on electromyography are not pathognomonic for any specific disease process, an abnormal electromyogram can indicate if a neuropathy or neuromuscular[aafp.org] electromyograms, evocative muscle biopsy and an abnormal signal on muscle magnetic resonance imaging.[err.ersjournals.com] View/Print Table TABLE 4 Selected Causes of Primary Muscle Weakness Cause Weakness Age of onset/diagnosis Systemic symptoms and findings Laboratory abnormalities Creatine[aafp.org]

    Missing: Presynaptic Defect at the Neuromuscular Junction

Further symptoms