EURORAD ESR

Case 8013

Incidental finding of a giant popliteal aneurysm on MRI of the knee

Author(s)
Schubert R.
Radiologie am Europa-Center, Berlin, Germany.
 
Patient
male, 64 year(s)
 
 
  • Figure 1
    Sagittal MRI of the knee
     

    T2*-weighted image showing a large, capsulated mass in the left popliteal fossa with streaky fields of changing signal intensities

     

    T1-weighted imaging in the same plane as Fig. 1a demonstrates the continuity of the aneurysmal sac with the popliteal vessels

     
     
     
  • Figure 2
    Transverse MRI of the knee

    On fat saturated T2 FSE images, the aneurysm shows a hypointense wall and concentric thrombotic material of different maturity stages. In the anterior third, there is a small flow void indicating a patent popliteal...

     
     
     
T2*-weighted image showing a large, capsulated mass in the left popliteal fossa with streaky fields of changing signal intensities
 
T1-weighted imaging in the same plane as Fig. 1a demonstrates the continuity of the aneurysmal sac with the popliteal vessels
 
On fat saturated T2 FSE images, the aneurysm shows a hypointense wall and concentric thrombotic material of different maturity stages. In the anterior third, there is a small flow void indicating a patent popliteal artery
 
 
 
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