The smoke sign: a secondary sign of unsuspected acute pectoralis major tendon injury on routine shoulder MRI
| Autor: | Jenny T. Bencardino, Catherine N. Petchprapa, Devin Vaswani, Mohammad Samim, Elisabeth R Garwood |
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| Rok vydání: | 2021 |
| Předmět: |
030222 orthopedics
medicine.medical_specialty business.industry Soft tissue edema Retrospective cohort study Biceps 030218 nuclear medicine & medical imaging 03 medical and health sciences 0302 clinical medicine Pectoralis major tendon Shoulder MRI Orthopedic surgery medicine Radiology Nuclear Medicine and imaging In patient Coracobrachialis Radiology business |
| Zdroj: | Skeletal Radiology. 50:1873-1880 |
| ISSN: | 1432-2161 0364-2348 |
| Popis: | To study the diagnostic utility of the “smoke sign” to detect unsuspected acute pectoralis major tendon injury on routine shoulder MRI. Retrospective study of 52 shoulder MRI in patients with (38) and without (14) acute pectoralis major injury confirmed on imaging. Two readers independently reviewed shoulder MRI for the presence of the “smoke sign”—feathery soft tissue edema lateral or anterior to short head biceps/coracobrachialis on fluid-sensitive coronal-oblique and sagittal-oblique images, respectively. The smoke sign was present on shoulder MRI in 24/24 (100%) humeral avulsions, 4/4 (100%) tendon tears, 4/8 (50%) of myotendinous junction injuries, and 0/2 (0%) intramuscular injuries. The smoke sign was present in 0/14 examinations without acute pectoralis major injury. While dedicated pectoralis MRI remains the preferred method for imaging pectoralis injury, the “smoke sign” can serve as an easy to recognize finding on routine shoulder MRI that can raise the suspicion of an acute pectoralis major tendon injury. Its detection should prompt evaluation of the pectoralis major tendon and recommendation for dedicated imaging to confirm and evaluate the full extent of injury. |
| Databáze: | OpenAIRE |
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