Presentation
Recent fall, now swollen painful knee.
Patient Data
Age: 75 years
Gender: Male
From the case:
Popliteal artery aneurysm
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Grossly degenerate knee with a large partially thrombosed (lamellated clot-filled) aneurysm of the popliteal artery (arrow).
Case Discussion
Note pulsation artefact in the phase encoding direction. Differentiates from other soft tissue masses behind the knee.