1st image shows an AVM lesion in the upper calf with
intense contrast enhancement of the AVM nidus. This is a
high-flow vascular anomaly (vascular birthmark) draining
into the deep venous system. There are multiple small
arterail feeders seen.
2nd & 3rd images: Selective catheterization of one
of the arterial feeders and selective arteriograms show
rapid arteriovenous blood flow and tortuous vasculature
in the nidus area. This vascular bed was subsequently
embolized with absolute alcohol (not shown).
4th and 5th images: Direct percutaneous puncture of
the varicoid aneurysmal venous lesion and contrast
injection and coil embolization of the venous
Last image is the post-embolization image. The lesion
is no longer fills with contrast and the extremity
arteries are widely patent.