Add to Lightbox
The inferior vena cava is the major vein draining blood from the lower half of the body to the heart. Here blockage of this vessel over a long period of time has resulted in the dilatation of normally unimportant veins to bypass the blockage.
Mediscan/Visuals Unlimited, Inc.
all images © Visuals Unlimited
Visuals Unlimited, Inc. specializes in, microscopy, healthcare, medical, wildlife, underwater, agriculture, and science stock photography.