Introduction. Pseudoaneurysm, also known as a false aneurysm, is a collection
of blood which passes through individual layers of the blood vessel or
through all layers, but it is retained in the surrounding soft tissues. Case
Report. We report presents a 41-yearold patient with a large idiopathic
pseudaneurysm of the second segment of the popliteal artery, referred by an
orthopedist with a magnetic resonance image of the left leg. The patient?s
medical history showed that the pain started three weeks ago, the swelling in
the left popliteal fossa about 6 months ago, and a large, painful,
non-pulsatile tumefaction was found during the examination, resulting in a 90
degrees flexion contracture of the left knee. The magnetic resonance showed a
pseudoaneurysm of the left popliteal artery, and an emergency computed
tomography angiography was performed; it confirmed a pseudoaneurysm of the
left leg second segment of the left popliteal artery without signs of
obliterative diseases. The posterior approach and exposition of the popliteal
artery was applied; autovenous graft interposition with a great saphenous
vein of the right leg was done. Conclusion. Early diagnosis plays an
important role in avoiding temporary and permanent complications. Arterial
reconstruction with autovein grafting is a gold standard and a method of
choice in the surgery of the pseudaneurysm of the popliteal artery. The
temporary setting of occlusive Fogarty catheters reduces damage to the
surrounding tissue, accelerates bleeding control, which together shortens the
time of surgery.