case_images: PMC5422735_01
case_images: Anteroposterior maximum intensity projection 18F-FDG positron emission tomography image showing intense abnormal tracer uptake into the skeletal muscles, in particular, into the muscles of the upper extremities, the long muscles of the neck, muscles of the chest wall, and sternocleidomastoid muscle (a, b) as well as the muscle groups of the lower limbs (c).
case_images: cro-0010-0258-g01.jpg
case_images: PMC5422735_01_cro-0010-0258-g01.jpg
case_images: F1
case_images: Fluorine-18 fluorodeoxyglucose (18F-FDG) positron emission tomography was performed and showed an intense widespread tracer uptake in the skeletal muscles, particularly in the upper extremities, sternocleidomastoid muscle, the long muscles of the neck, the muscle groups of the scapular tracks bilaterally, certain muscles of the chest wall, the rectus abdominis muscles, the iliopsoas muscles, and almost all the muscle groups of the upper and lower limbs (Fig. 1), according to the clinical history and laboratory data.