This is an image preview.
Start a Free Account
to view the full image.

Sign Up for a Free Account For information on discounts, see Plans & Pricing

Nearly 3,000 illustrations, including video clips of neurologic disorders.
Every article is reviewed by our esteemed Editorial Board for accuracy and currency.
Full spectrum of neurology in 1,200 comprehensive articles.
Listen to MedLink on the go with Audio versions of each article.

Dystonia and stereotypy due to levodopa in Parkinson disease

This woman has advanced Parkinson disease and levodopa-related diphasic, dyskinesia-improvement-dyskinesia (D-I-D) pattern of dyskinesia. The dyskinesias are characterized mostly by right foot dystonia and rhythmic, stereotyped banging of the right arm. After taking levodopa, she experiences dyskinesias, which improve but then recur as the therapeutic effect of levodopa wears off. Dyskinesias recur again after taking the next dose of levodopa and abate while the therapeutic effect peaks. (Contributed by Dr. Joseph Jankovic.)