Recurrent and new primary cancer risk in adult patients with idiopathic inflammatory myositis and a history of malignancy

Key Points

• The study aims to evaluate the cancer risk in adult patients with idiopathic inflammatory myositis (IIM) who have a history of malignancy.
• Data was collected at a tertiary referral center.
• Patients with a history of cancer prior to IIM diagnosis were identified.
• The incidence of new or recurrent malignancies was assessed over a defined period.
• One quarter of IIM patients with a previous cancer developed a new or recurrent malignancy.
• Most malignancies occurred within three years of IIM onset.