No association between malignant melanoma and acne or psoriasis: results from the Western Canada Melanoma Study

In a study of 651 patients with cutaneous malignant melanoma and matched controls, no association was found with a history of acne vulgaris or psoriasis. Examination of the severity, age at onset and treatment for acne or psoriasis, and analysis by age, sex and site distribution of melanoma, revealed no evidence of any association.