Magnan's sign is a
clinical sign
Signs and symptoms are diagnostic indications of an illness, injury, or condition.
Signs are objective and externally observable; symptoms are a person's reported subjective experiences.
A sign for example may be a higher or lower temperature ...
in which people with
cocaine addiction
Cocaine dependence is a neurological disorder that is characterized by withdrawal symptoms upon cessation from cocaine use. It also often coincides with cocaine addiction which is a biopsychosocial disorder characterized by persistent use of ...
experience
paraesthesia
Paresthesia is a sensation of the skin that may feel like numbness (''hypoesthesia''), tingling, pricking, chilling, or burning. It can be temporary or chronic and has many possible underlying causes. Paresthesia is usually painless and can oc ...
which feels like a constantly moving
foreign body
A foreign body (FB) is any object originating outside the body of an organism. In machinery, it can mean any unwanted intruding object.
Most references to foreign bodies involve propulsion through natural orifices into hollow organs.
Foreign b ...
, such as fine sand or powder, under the skin.
Magnan's sign
at Mondofacto online medical dictionary
The sign is named after Valentin Magnan
Valentin Magnan (16 March 1835 – 27 September 1916) was a French psychiatrist active in the 19th century.
Biography
Valentin Magnan was a native of Perpignan. He studied medicine in Lyon and Paris, where he was a student of Jules Baillar ...
.
External links
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References
Medical signs
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