Thrombosis means a blood clot has formed inside a blood vessel and may reduce or block blood flow.
Symptoms depend on where the clot is and may include pain, swelling, warmth, shortness of breath, chest pain, or organ-specific loss of blood flow.
Imaging helps confirm whether a clot is present, how extensive it is, and whether it is affecting a vein, artery, or organ circulation.
Ultrasound, CT angiography, or MRI may be used depending on where the clot is suspected.
Management often includes blood thinners, monitoring, and sometimes urgent procedures when major vessels or organs are affected.
This entry explains the finding. The next step is having a radiologist interpret your specific scan, not a general definition.