Thrombus

A thrombus is a blood clot that forms in a vessel and remains there. An embolism is a clot that travels from the site where it formed to another location in the body. Thrombi or emboli can lodge in a blood vessel and block the flow of blood in that location depriving tissues of normal blood flow and oxygen. This can result in damage, destruction (infarction), or even death of the tissues (necrosis) in that area.

Janeway Lesion on the Finger

Janeway lesions are seen in people with acute bacterial endocarditis. They appear as flat, painless, red to bluish-red spots on the palms and soles.

Deep Venous Thrombosis, Ileofemoral

This picture shows a red and swollen thigh and leg caused by a blood clot (thrombus) in the deep veins in the groin (ileofemoral veins) which prevents normal return of blood from the leg to the heart.