Image Interpretation: The right anterior seventh rib has cortical irregularity with periosteal elevation and hyperemia on doppler imaging consistent with healing fracture. The adjacent intercostal muscle appeared normal. The underlying lung sliding is normal without evidence of pneumothorax or effusion.
Teaching Pearl: Ultrasound may detect more rib fractures than radiography in patients with focal rib trauma because the probe can be placed directly over the point of maximum tenderness to evaluate the bony cortical surface. Sonographic findings include cortical step-off or discontinuity, periosteal elevation, hematoma, and Doppler hyperemia at the fracture site.
When appropriate, it can be important to evaluate the pleural line deep to the fracture for lung sliding and consider additional imaging for severe trauma, respiratory symptoms, or suspected intrathoracic injury.
References:
1. Gilbertson J, Pageau P, Ritcey B, et al. Test characteristics of chest ultrasonography for rib fractures following blunt chest trauma: a systematic review and meta-analysis. Ann Emerg Med. 2022;79(6):529-539. doi:10.1016/j.annemergmed.2022.02.006
2. Abu-Zidan FM, Alao DO, Cevik AA. Point-of-care ultrasound (POCUS) diagnosis of rib fractures. World J Emerg Surg. 2026;21(1):1. doi:10.1186/s13017-025-00665-9
3. Pishbin E, Ahmadi K, Foogardi M, Salehi M, Seilanian Toosi F, Rahimi-Movaghar V. Comparison of ultrasonography and radiography in diagnosis of rib fractures. Chin J Traumatol. 2017;20(4):226-228. doi:10.1016/j.cjtee.2016.04.010