MRI to detect sites of myositis prior to targetted biopsy
Diffuse oedema in the gastrocnemius and soleal muscles of the right leg associated with expansion of the calf veins filled with T1 and T2 hyperintense material indicative of clot. All other calf and thigh muscles are normal. Note left calf veins do not contain T1 hyperintensity i.e. methaemoglobin.