Magnan's sign is a
clinical sign
Signs and symptoms are the observed or detectable signs, and experienced symptoms of an illness, injury, or condition. A sign for example may be a higher or lower temperature than normal, raised or lowered blood pressure or an abnormality showin ...
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 coc ...
experience
paraesthesia
Paresthesia is an abnormal sensation of the skin (tingling, pricking, chilling, burning, numbness) with no apparent physical cause. Paresthesia may be transient or chronic, and may have any of dozens of possible underlying causes. Paresthesias ar ...
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 bo ...
, 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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