Quiz Form

Question Date: 17/08/2023

Question: A 43-year-old woman presents with the sudden onset of severe dystonic posturing of her right hand and forearm. It is painful and constant<br><br>Which of the following concomitant neurologic signs on examination might suggest a psychogenic or functional movement disorder?

Options:

• Clonus
• Convergence spasm
• Diffuse spread of reflexes
• Nystagmus

Correct Answer: Convergence spasm

Explaination: Convergence spasm is a frequent sign of a functional neurologic disorder. Other findings that might suggest a functional etiology include give-away weakness, nonanatomic distributions of sensory loss, astasia-abasia, and excessive startle response.

Reference: Morgante F, Edwards MJ, Espay AJ. Psychogenic movement disorders. Continuum (Minneap Minn). 2013 Oct19(5 Movement Disorders)1383-96. doi 10.121201.CON.0000436160.41071.79. PMID 24092294 PMCID PMC4234133.