AANS Neurosurgeon | Volume 27, Number 4, 2018

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Diagnosing Strokes is Complicated by "Mimics" and "Chameleons"

Stroke specialists often see conditions known as stroke “mimics” and “chameleons” that can complicate accurate diagnoses, Loyola Medicine neurologists report.

Stroke mimics are medical conditions that look like strokes, while chameleons are strokes that look like other conditions.

Diagnostic accuracy “may be complicated by the abundance of both ‘stroke mimics’ and ‘stroke chameleons,'” neurologists Shannon Hextrum, MD, and José Biller, MD, wrote. Dr. Biller is professor and chair of the department of neurology of Loyola University Chicago Stritch School of Medicine. Dr. Hextrum completed a neurology residency at Loyola.

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