A number of disorders may mimic ALS; examples include:
- Myasthenia gravis.
- Lambert-Eaton myasthenic syndrome.
- Lyme disease.
- Poliomyelitis and post-poliomyelitis.
- Heavy metal intoxication.
- Kennedy syndrome.
- Adult-onset Tay-Sachs disease.
- Hereditary spastic paraplegia.
Can als be misdiagnosed?
AUSTIN – Lack of upper motor neuron signs on examination, presence of sensory symptoms, and absence of tongue fasciculations are common causes of amyotrophic lateral sclerosis (ALS) misdiagnosis, according to an investigation presented at the annual meeting of the American Association of Neuromuscular and
Can thyroid disease mimic ALS?
Amyotrophic lateral sclerosis (ALS), a progressive neurological disorder, can be challenging to diagnose because its obvious symptoms are common to other neurological conditions. A poorly working thyroid can cause myopathy, or muscle disease, leading to the muscular weakness and cramps also experienced by ALS patients.
Can MND be misdiagnosed?
The misdiagnosis of MND (particularly of the ALS phenotype), is uncommon. Atypical presentations, particularly of focal onset and with pure LMN or UMN signs, present a more difficult diagnostic challenge, although perhaps reassuringly, treatable mimics are rare.
Can a pinched nerve mimic ALS?
ALS symptoms usually start with painless weakness developing in a hand or foot and can be mistaken for more common problems, such as carpal tunnel syndrome or a pinched nerve. The muscle weakness slowly gets worse. Other symptoms and signs include: Muscle stiffness and wasting.
Is there a mild form of ALS?
Sporadic ALS is the most common form. It affects up to 95% of people with the disease. Sporadic means it happens sometimes without a clear cause. Familial ALS (FALS) runs in families.
How do you rule out ALS?
Tests to rule out other conditions might include:
- Electromyogram (EMG). Your doctor inserts a needle electrode through your skin into various muscles.
- Nerve conduction study.
- Blood and urine tests.
- Spinal tap (lumbar puncture).
- Muscle biopsy.
Is there a definitive test for ALS?
ALS is a difficult disease to diagnose. There is no one test or procedure to ultimately establish the diagnosis of ALS. It is through a clinical examination and series of diagnostic tests, often ruling out other diseases that mimic ALS, that a diagnosis can be established.
Is Hyperreflexia a symptom of ALS?
Systemic diseaseHyperthyroidism may misdiagnoses as ALS. It presents with corticospinal tract signs (hyperreflexia), fasciculations, weight loss, and weakness. However, there usually are additional systemic signs such as heat intolerance, anxiety, tremor, tachycardia, and insomnia.