Why would a doctor ask for a CT scan and ultrasoundof swole legs?

A doctor may request a CT scan and ultrasound of swollen legs to investigate potential underlying causes such as deep vein thrombosis (DVT), vascular issues, or infections. The ultrasound is particularly useful for assessing blood flow and detecting clots, while the CT scan can provide a more detailed view of the structures and any possible abnormalities. Together, these imaging techniques help in diagnosing the cause of swelling and determining the appropriate treatment.