PMC3357589_01
Ultrasound image of popliteal fossa including the sciatic nerve with intraneural neurofibroma and popliteal artery.
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fig1
The lesions appeared solitary, ovoid and contiguous with the nerve, had a hypoechoic echotexture with well-defined margins, and demonstrated subtle distal acoustic enhancement (Figure 1).
Ultrasound image with doppler flow analysis of popliteal fossa including the sciatic nerve with intraneural neurofibroma and popliteal artery. Doppler analysis correctly identifies blood flow in the popliteal artery and lack of flow in the intraneural inclusion of the sciatic nerve.
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fig2
With popliteal artery in view, we were able to demonstrate true and faux (neurofibroma) arterial structures using doppler analysis (Figure 2).
Ultrasound image of the popliteal fossa including the sciatic nerve with no intraneural inclusion, perineural infiltration of local anesthetic, Stimuplex needle, and popliteal artery.
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fig3
The local anesthetic spread circumferentially around the sciatic nerve as noted on ultrasound examination (Figure 3).