HMGCR and myositis disease: Pestronk described this injury pattern as immune myopathies with perimysial pathology (IMPP) [21], which can be seen in Jo-1 myositis [8, 21], other antisynthetase syndrome associated myositis with autoantibodies such as PL-12, EJ, necrotizing autoimmune myopathy with HMGCR auto antibody [22], and patients with SSA/SSA52 autoantibody [19].