PMC8363954_01
computerized tomography (CT) angiography showing the stenotic segment of the right popliteal artery (arrow)
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F1
Computerized tomography (CT) - angiography of the popliteal fossa in 4-mm sections showed a popliteal artery stenosis with a post-stenotic dilatation (Figure 1).
magnetic resonance angiography (MRA) of the popliteal fossa showing (A) the stenotic segment of the popliteal artery (arrow), notice the decreased blood flow downstream; (B) the abnormal musculotendinous insertion of the medial gastrocnemius head (arrow)
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F2
We note that an atheroma plaque of 14 mm was also found reducing partially the popliteal artery lumen with a low flow downstream (Figure 2).
operative photos showing (A) the anomalous accessory slip of the medial head of the gastrocnemius muscle (arrow) and (B) the post-stenotic popliteal aneurysm after resection of the anomalous muscle
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F3
An abnormal insertion into the medial femoral condyle of the accessory head of the gastrocnemius muscle was found (Figure 3).
final replacement of the narrowed popliteal segment by a saphenous venous graft bypass
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F4
An autologous saphenous venous graft was used to replace the compromised arterial segment, and the accessory head the gastrocnemius muscle was resected (Figure 4).
post-operative angiography objectifying the relieve of the popliteal stenosis
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F5
An angiographic control (Figure 5) allowed confirmation of the stenosis relief and the restitution of a good blood flow.