The prevalence, clinical features, predictive factors and investigations to screen for cancer in patients with inflammatory myositis. A case series from two tertiary care centers in Riyadh, Saudi Arabia.

Objectives: To describes the epidemiology of cancer in patients with idiopathic inflammatory myopathies (IIM) treated at 2 tertiary centers in Riyadh, Saudi Arabia.

Methods: This was a retrospective multi-center study evaluating the prevalence and the type of malignancy in an IIM population in King Saud University Medical City and King Abdulaziz Medical City between August 2017 to August 2018.

Results: In total, 60 patients were included.