PMC4290649_01
The arteriography of the popliteal artery showed the pseudoaneurysm.
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A popliteal pseudoaneurysm was detected in the distal part of the popliteal artery near the bifurcation to the anterior and posterior tibial arteries and was about 4 cm in diameter (Figure 1).
The posterior and lateral view of the popliteal mass on the operating table.
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The lesion was soft, fluctuant, and painless in palpation (Figure 2).
The arteriography of the popliteal mass which showed the occluded popliteal artery and the distal flow with collateral vessels.
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In the arteriography images, the popliteal artery occluded in the proximal section but was filled in the distal section with collateral vessels (Figure 3).
The sagittal section of the popliteal mass on MRI showed the enormous mass.
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The MRI scan revealed an enormous soft tissue mass of 115 x 107 x 196 cm in size between the medial and lateral heads of the gastrocnemius with the features compatible with hematoma with lobulation (Figure 4).
Intraoperative photograph of the mass and chocolate-brown fluid was seen.
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The mass is excised from the adhered tibia protecting the nerve and the collateral vessels with hockey stick incision on the popliteal fossa on prone position (Figure 5).
The excised CEH with villous formation.
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The findings we gathered from the operation were compatible with a large fibrous cavity with villous formation containing a considerable quantity of altered blood clot (Figure 6).
Lateral and posterior view of the patient one year after the surgery.
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After one year from the surgical treatment, the patient has not shown any sign of recurrence (Figure 7).