How is axillary and subclavian vein thrombosis (Paget–von Schrötter syndrome) diagnosed?

Updated: Jun 05, 2019
  • Author: Kaushal (Kevin) Patel, MD; Chief Editor: Barry E Brenner, MD, PhD, FACEP  more...
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Ultrasonography and venography are the diagnostic tests of choice. Ultrasonographic findings may be falsely negative because of collateral blood flow. Duplex ultrasonography is accurate for the evaluation of the internal jugular vein and its junction with the subclavian vein where the innominate vein begins.

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