Anti‐Ku antibody‐positive systemic sclerosis‐polymyositis overlap syndrome in an adolescent

Systemic sclerosis‐polymyositis overlap syndrome is rare in children. Anti‐PM/Scl is the most common autoantibody associated with this syndrome. We present a case of systemic sclerosis‐polymyositis overlap syndrome in a child with isolated anti‐Ku antibodies, an uncommon antibody associated with this rare syndrome.