Figure 4
From: First rib fracture and Horner’s syndrome due to a motor vehicle collision: a case report
Cervical spine magnetic resonance imaging MRI. A T2 weighted image (A) reveals a displaced fracture at the proximal right first rib with increased signal intensity at the fracture site (white arrow). Image (B) reveals the displaced fracture at the proximal right first rib with isointense signal at the fracture site (white arrow). These findings are indicative of edema and hemorrhage.