What do thromboses look like on ultrasound?
- 13 January 2026
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Isolated calf vein thrombosis (tibial, peroneal veins) can initially be silent, but proximal extension usually occurs within 7–14 days if untreated. A mobile, floating thrombus, visible on ultrasound, is a marker of increased embolic risk, even in the absence of severe symptoms.
🥼 Doppler can distinguish inflammatory from thrombotic edema by analyzing venous flow and response to distal compression maneuvers.
Why timing matters ↓
✦ In the first few days, the thrombus is loosely attached and more embolic.
✦ After several weeks, the ultrasound appearance changes dramatically, and misinterpretation can lead to over- or undertreatment.
Doppler ultrasound not only confirms the presence of deep vein thrombosis but also provides critical information on thrombus age, stability, and risk of complications, which cannot be determined from symptoms alone.
🔗 About Doppler ultrasound of the lower limbs — on the website: invitro.md
📍 Find out which branch offers this service ↓
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