This picture shows a red and swollen thigh and leg caused by a blood clot (thrombus) in the deep vein in the groin (iliofemoral vein), which prevents normal return of blood from the leg to the heart.
Review Date: 03/10/2011
Reviewed By: Harvey Simon, MD, Editor-in-Chief, Associate Professor of Medicine,
Harvard Medical School; Physician, Massachusetts General Hospital.
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