"Venous thrombosis is a condition in
which a blood clot (thrombus) forms in a vein. This clot can limit
blood flow through the vein, causing swelling and pain. Most
commonly, venous thrombosis occurs in the "deep veins" in
the legs, thighs, or pelvis. When this occurs, it is called a deep
vein thrombosis, or DVT."
Symptomatic thrombosis is much more frequent in
cancer patients on chemotherapy than previously estimated, even in
patients with hematologic malignancies. 1
Note: Prolonged periods of immobility,
particularly on plane rides and long car trips, can increase this risk.