Retrospective multicentre study of 122 anti-synthetase syndrome pts - 14 (11%) had cancer associated myositis (CAM). The CAM SIR= 5.4 (elevated vs gen. pop. p < 0.0001). These pts were older, often +Hx cancer, lower CK levels, less weakness, worse survival. CAM cluster= older https://t.co/nuKg3P89a8