Upper extremity exertional rhabdomyolysis: MR imaging findings in four cases

Figures

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  Fig. 1. Twenty-five years old man with 2 days of right upper extremity pain following heavy weight lifting. Coronal (a) and sagittal (b) fat-suppressed T2-weighted images demonstrate hyperintensity in the supraspinatus muscle (white arrows), superficial fascial signal abnormality (white arrowheads), and subcutaneous edema (black asterisk).

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  Fig. 2. Thirty-three years old woman with 2 days of left upper extremity swelling and difficulty moving after partaking in weight lifting with kettlebell exercises and push-ups approximately 2 days prior to presentation. Sagittal (a) and axial (b) fat-suppressed T2-weighted images demonstrate hyperintensity in the brachialis, brachioradialis, extensor carpi radialis longus, and lateral head of the triceps muscles (white arrows), superficial fascial signal abnormality (white arrowheads), deep fascial signal abnormality (black arrowheads), and subcutaneous edema (black asterisks).

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  Fig. 3. Seventeen years old boy with 5-6 days of right upper extremity swelling after performing biceps curls. Coronal (a) and axial (b) inversion recovery images demonstrate hyperintensity in the biceps and brachialis muscles (white arrows) and subcutaneous edema (black asterisks).

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  Fig. 4. Twenty-three years old man with 1 day history of left upper extremity swelling, dyspnea, and chest tightness following recent weight lifting and golf. Coronal (a) and axial (b) inversion recovery images demonstrate hyperintensity in the long head of the triceps muscle (white arrows) and to a lesser extent teres major muscle (black arrows), superficial fascial signal abnormality (white arrowheads), deep fascial signal abnormality (black arrowheads), and subcutaneous edema (black asterisks).