Magnan sign

Mag·nan sign

(mah-nyahn'),
paresthesia in the psychosis of cocaine addicts, who imagine they have a foreign body, in the shape of a powder or fine sand, under the skin, and that it is constantly changing its position.
Farlex Partner Medical Dictionary © Farlex 2012

Magnan sign

An obsolete term for formication, specifically of cocaine addicts
The term is attributed to Valentin JJ Magnan (1835-1916), French psychiatrist.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

Mag·nan sign

(mah-nyan[h]' sīn)
Paresthesia in the psychosis of cocaine addicts, who imagine they have a foreign body in the shape of a powder or fine sand under the skin, and that it is constantly changing its position.
Synonym(s): coke bugs.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

Magnan,

Valentin Jacques Joseph, French psychiatrist, 1835-1916.
Magnan sign - paresthesia in the psychosis of cocaine addicts.
Magnan trombone movement - involuntary forward and back movement of the tongue when it is drawn out of the mouth in several basal ganglia disorders.
Medical Eponyms © Farlex 2012