PMC6141260_01
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B
) 0, AP and lateral femoral artery angiography show the pseudoaneurysm arising from proximal anterior tibial artery in popliteal region (black arrow head).The tibioperoneal trunk is patent (white arrow head). The posterior tibial artery (black arrow) is demonstrated where peroneal artery (white arrow seems to be narrow probably because of the compressive effect of the pseudoaneurysm. A small missile fragment is demonstrated in both views (short black arrows).
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PMC6141260_01_10-1055-s-0038-1669403-i1700005-1.jpg
FI1700005-1
The artery bowed because of the compressive effect of the pseudoaneurysms ( Fig.1 ).
Contrasted CT scan showing the actual size of the aneurysm with its pseudocapsule being presented as rim enhancement. The patent part of the aneurysm is demonstrated as a hyperdense mass compatible with fresh blood which is surrounded by isodense area compatible with old clot. An artifact may be due to the missile fragment hidden behind the bone.
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FI1700005-2
The rim was compatible with the pseudocapsule of the aneurysm and the isointense mass was an old clot where hyperdense area was the patent part of the aneurysm ( Fig. 2 ). 