Myerson's sign: Difference between revisions
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{{Infobox medical condition | |||
| name = Myerson's sign | |||
| synonyms = Glabellar tap sign | |||
| field = [[Neurology]] | |||
| symptoms = Persistent blinking when the [[glabella]] is tapped | |||
| causes = Often associated with [[Parkinson's disease]] | |||
| diagnosis = Clinical examination | |||
| differential = [[Parkinson's disease]], [[Progressive supranuclear palsy]], [[Wilson's disease]] | |||
| treatment = Treatment of underlying condition | |||
| frequency = Common in [[Parkinson's disease]] patients | |||
}} | |||
``` | |||
This template provides a structured summary of Myerson's sign, a clinical sign observed in neurology, particularly associated with Parkinson's disease. It includes key information such as synonyms, field of study, symptoms, causes, diagnosis, differential diagnosis, treatment, and frequency. Each keyword is linked to its respective Wikipedia page for further reading. '''Myerson's sign''' is a [[neurological]] symptom where a patient is unable to resist blinking when tapped on the bridge of the nose. This sign is often associated with [[Parkinson's disease]] and other [[extrapyramidal disorders]]. | |||
== Overview == | == Overview == | ||
Myerson's sign is a clinical sign in which repetitive tapping (about 2 per second) over the bridge of the nose produces a sustained blink response ([[glabellar tap reflex]]). The sign is named after the American neurologist [[Abraham Myerson]]. It is often associated with Parkinson's disease and is considered a form of [[hypokinesia]]. | Myerson's sign is a clinical sign in which repetitive tapping (about 2 per second) over the bridge of the nose produces a sustained blink response ([[glabellar tap reflex]]). The sign is named after the American neurologist [[Abraham Myerson]]. It is often associated with Parkinson's disease and is considered a form of [[hypokinesia]]. | ||
== Clinical significance == | == Clinical significance == | ||
Myerson's sign is often used as a diagnostic tool in the evaluation of patients with suspected Parkinson's disease. It is one of the [[motor symptoms]] that may be present in the early stages of the disease. However, it is not specific to Parkinson's disease and can also be seen in other conditions such as [[progressive supranuclear palsy]], [[Wilson's disease]], and [[Huntington's disease]]. | Myerson's sign is often used as a diagnostic tool in the evaluation of patients with suspected Parkinson's disease. It is one of the [[motor symptoms]] that may be present in the early stages of the disease. However, it is not specific to Parkinson's disease and can also be seen in other conditions such as [[progressive supranuclear palsy]], [[Wilson's disease]], and [[Huntington's disease]]. | ||
== Pathophysiology == | == Pathophysiology == | ||
The exact mechanism of Myerson's sign is not fully understood. It is thought to be due to a loss of inhibition in the [[brainstem]] reflexes, which is a characteristic feature of Parkinson's disease and other extrapyramidal disorders. The sustained blink response is believed to be due to a failure of the normal inhibitory processes in the brain that control the blink reflex. | The exact mechanism of Myerson's sign is not fully understood. It is thought to be due to a loss of inhibition in the [[brainstem]] reflexes, which is a characteristic feature of Parkinson's disease and other extrapyramidal disorders. The sustained blink response is believed to be due to a failure of the normal inhibitory processes in the brain that control the blink reflex. | ||
== Treatment == | == Treatment == | ||
There is no specific treatment for Myerson's sign. Treatment is directed towards the underlying condition causing the sign. In the case of Parkinson's disease, medications such as [[levodopa]] and [[dopamine agonists]] may help to reduce the severity of the sign. | There is no specific treatment for Myerson's sign. Treatment is directed towards the underlying condition causing the sign. In the case of Parkinson's disease, medications such as [[levodopa]] and [[dopamine agonists]] may help to reduce the severity of the sign. | ||
== See also == | == See also == | ||
* [[Parkinson's disease]] | * [[Parkinson's disease]] | ||
* [[Extrapyramidal symptoms]] | * [[Extrapyramidal symptoms]] | ||
* [[Neurological examination]] | * [[Neurological examination]] | ||
== References == | == References == | ||
<references /> | <references /> | ||
[[Category:Neurological disorders]] | [[Category:Neurological disorders]] | ||
[[Category:Symptoms and signs]] | [[Category:Symptoms and signs]] | ||
[[Category:Parkinson's disease]] | [[Category:Parkinson's disease]] | ||
{{stub}} | {{stub}} | ||
Latest revision as of 06:13, 4 April 2025
| Myerson's sign | |
|---|---|
| Synonyms | Glabellar tap sign |
| Pronounce | N/A |
| Specialty | N/A |
| Symptoms | Persistent blinking when the glabella is tapped |
| Complications | N/A |
| Onset | N/A |
| Duration | N/A |
| Types | N/A |
| Causes | Often associated with Parkinson's disease |
| Risks | N/A |
| Diagnosis | Clinical examination |
| Differential diagnosis | Parkinson's disease, Progressive supranuclear palsy, Wilson's disease |
| Prevention | N/A |
| Treatment | Treatment of underlying condition |
| Medication | N/A |
| Prognosis | N/A |
| Frequency | Common in Parkinson's disease patients |
| Deaths | N/A |
```
This template provides a structured summary of Myerson's sign, a clinical sign observed in neurology, particularly associated with Parkinson's disease. It includes key information such as synonyms, field of study, symptoms, causes, diagnosis, differential diagnosis, treatment, and frequency. Each keyword is linked to its respective Wikipedia page for further reading. Myerson's sign is a neurological symptom where a patient is unable to resist blinking when tapped on the bridge of the nose. This sign is often associated with Parkinson's disease and other extrapyramidal disorders.
Overview[edit]
Myerson's sign is a clinical sign in which repetitive tapping (about 2 per second) over the bridge of the nose produces a sustained blink response (glabellar tap reflex). The sign is named after the American neurologist Abraham Myerson. It is often associated with Parkinson's disease and is considered a form of hypokinesia.
Clinical significance[edit]
Myerson's sign is often used as a diagnostic tool in the evaluation of patients with suspected Parkinson's disease. It is one of the motor symptoms that may be present in the early stages of the disease. However, it is not specific to Parkinson's disease and can also be seen in other conditions such as progressive supranuclear palsy, Wilson's disease, and Huntington's disease.
Pathophysiology[edit]
The exact mechanism of Myerson's sign is not fully understood. It is thought to be due to a loss of inhibition in the brainstem reflexes, which is a characteristic feature of Parkinson's disease and other extrapyramidal disorders. The sustained blink response is believed to be due to a failure of the normal inhibitory processes in the brain that control the blink reflex.
Treatment[edit]
There is no specific treatment for Myerson's sign. Treatment is directed towards the underlying condition causing the sign. In the case of Parkinson's disease, medications such as levodopa and dopamine agonists may help to reduce the severity of the sign.
See also[edit]
References[edit]
<references />
