"Stretched Slinky" Sign: Another Clue to Functional Tremor

Wilson K W Fung1, Alfonso Fasano1

  • 1Edmond J. Safra Program in Parkinson's Disease and Morton and Gloria Shulman Movement Disorders Clinic (WKWF, AF), Toronto Western Hospital, UHN; Division of Neurology (AF), University of Toronto; and Krembil Research Institute (AF), Toronto, Ontario, Canada.

Summary

Functional tremor (FT) diagnosis is aided by a unique spiral drawing pattern. This looping appearance, resembling a stretched slinky, offers a new diagnostic clue for this common movement disorder.