An 74-year-old male with chronic low back pain and progressive lower extremity weakness. What is the diagnosis? • Xray of the Week Figure 1. Non-contrast CT of the lumbar spine. What is the diagnosis? Figure 2. Non-contrast CT of the lumbar spine (axial, sagittal, and coronal reconstructions): Central pattern of arachnoiditis ossificans demonstrating dagger-like ossification within the central spinal canal at the L5 level (red arrows). The linear, hyperdense bony bar courses

26 M jumped to catch a baseball and landed while rotating to the right. Diagnosis? • Xray of the Week

This prestigious award is given by Professor Resnick to the winner of his annual MSK imaging quiz.

34 M. Trauma due to falling off a roof . Diagnosis? • Xray of the Week Figure 1. Trauma due to falling off a roof . Diagnosis? Figure 2. Type B2 Lisfranc injury. (A) AP radiograph demonstrates the circled “fleck sign” or Lisfranc ligament avulsion fracture fragment. (B) Arrow demonstrates the increase in distance between the first and second metatarsals. The red lines show the misalignment or lateral displacement of the 2nd metatarsal bone over the second cuneiform bone and

79 year old male. Back pain and lower extremity weakness after a fall • Xray of the Week Figure 1.What are the important findings in each...

8 yo F with trauma. Diagnosis? • Xray of the Week Figure 1. Trauma in a 8 year old female. Diagnosis? Figure 2. Cuboid Bone Fracture....

8 Year Old Male With Trauma Due To A Fall. Diagnosis? • Xray of the Week Figure 1. What is the important finding? Figure 2 A: AP view...

Trauma in a 31 yo F due to a motor vehicle collision (MVC) • Xray of the Week Figure 1. What are the important findings on this CT scan....

81 F with trauma due to falling down stairs. Neck pain • Xray of the Week Figure 1. What is the important finding on this CT scan and...

BACKGROUND Due to its high mobility, the shoulder is the most unstable joint in the human body. Its instability is explained by a narrow...