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Soft Tissue Trauma
Achilles Rupture• Disruption of the tendon - edema
Normal
Achilles Rupture
• T2 image• Focal high signal in
tendon (white)• Irregular
appearance to tendon
• Tendon normally low signal (black)
Felt pop(“weekend warrior” athlete)
Knee injury
Normal comparison
ACL Tear
Normal comparison
ACL
ACL Tear #2
Normal comparison
ACL
ACL
Knee Trauma
Bone ContusionsPatellar dislocation/relocation pattern
• Bone edema as result of contusion
• See high signal from bleeding/ fluid in bone marrow
• Kissing lesions during dislocation of patella
Knee pain
Normal
Anterior horn lateral meniscus tear
• Anterior horn meniscal tear• High signal with extension to the superior
surface
Normal
Knee Pain
Radial tear lateral meniscus
Normal
Normal
High signal medial posterior lateral meniscus = tear
Knee pain basketball player
Normal
Jumper’s knee (patellar tendinosis/partial tearing)
• High signal from edema in the tendon and adjacent tissues
Normal
Muscle Tear
• Coronal section of the thigh
• High signal on Fat suppressed images
• Fluid-Hematoma in adductor muscle group
• Compare to right thigh
Myositis Ossificans
• Amorphous bone formation in soft tissues
• Likely related to prior trauma
Widened Mediastinum• Deceleration injury• Widened superior
mediastinum• Must exclude
positional factors (supine patient, AP film)
• CT can identify blood
• Angiogram to separate aortic injury from other vessel injuries
Aortic Tear
• Arch aortogram• Arrow indicates
area of aortic tear