Perchinsky M J, Long W B, Urman S, Borzotta A
Department of Trauma Services, Emanuel Hospital & Health Center, Portland, Oregon.
Injury. 1994 Dec;25(10):649-52. doi: 10.1016/0020-1383(94)90005-1.
Two elderly patients, involved in separate motor vehicle accidents, sustained blunt chest injury resulting in rupture of their thoracic aortas. The initial chest radiographs showed the presence of a calcified ring fractured in two places with lateral displacement of a calcified fragment by haematoma. This 'broken halo sign' is a radiographic sign not previously well described in the literature. The presence of a disrupted aortic ring in the elderly patient, associated with the appropriate mechanism of injury, should alert the clinician to the potential diagnosis of traumatic rupture of the thoracic aorta (TRTA).
两名老年患者分别遭遇机动车事故，胸部受到钝性损伤，导致胸主动脉破裂。最初的胸部X光片显示，一个钙化环在两处断裂，钙化碎片因血肿而向外侧移位。这种“断裂晕征”是一种放射学征象，此前在文献中未有详细描述。老年患者出现主动脉环中断，并伴有适当的损伤机制，应提醒临床医生注意胸主动脉创伤性破裂（TRTA）的潜在诊断。
