What is the relationship between melanoma and Parkinson disease (PD)?

Updated: Jan 24, 2019
  • Author: Robert A Hauser, MD, MBA; Chief Editor: Selim R Benbadis, MD  more...
  • Print
Answer

For years, there has been speculation about a relationship between PD and melanoma. Initially, it was theorized that the drug levodopa led to an increased risk of skin cancer, but studies did not confirm this. However, subsequent trials have since found an increased risk for melanoma in patients with PD. One particular study conducted in 2017 found that Parkinson patients have about a 4-fold increased risk of having preexisting melanoma. [15, 16] Another study found the risk to be 7-fold. [17]


Did this answer your question?
Additional feedback? (Optional)
Thank you for your feedback!