Researchers from the University of Nebraska examined melanoma prevalence rates and risk factors in 2,106 patients with Parkinson's disease.
Among the 1,692 patients there was a 124 per cent increased incidence of malignant melanomas compared with the general population.
These patients were also at seven times greater risk of any melanomas, compared with prevalence data from a US epidemiologic survey of cancer.
The authors said: 'A prevalence of greater than 1 per cent warrants increased vigilance and regular screening for melanoma in Parkinson's disease patients.'
- Arch Neurol 2010; 67; 347-52.