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This is a CTA (computed
tomographic angiography) image
showing an AVF (arteriovenous
fistula) in the right lower neck
area. This scan was performed with
a 16 channel multi-detector CT
scanner (Siemens). This scan was
completed in less than 30 seconds.
This type
of imaging became a routine
imaging study in the last few years
before any treatment attempt
(either surgical ligation of
the connection or
embolization). Other images
are DSA (or conventional
arteriography) images
demonstrating an AVF in the calf.
Arteriovenous fistulas may be
congenital or acquired vascular
malformations that may involve any
organ system. They are usually
symptomatic in young patients
because they can cause high-output
cardiac failure. A pulsatile mass
or a bruit can be found at
physical examination.
Arteriovenous fistulas are
generally curable with
endovascular interventions (e.g., embolization).
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