An intravenous pyelogram may be used to diagnose disorders that affect the urinary tract, such as kidney stones, bladder stones, enlarged prostate, kidney cysts or urinary tract tumors. During an intravenous pyelogram, you'll have an X-ray dye (iodine contrast solution) injected into a vein in your arm. The dye flows into your kidneys, ureters and bladder, outlining each of these structures.
By Mayo Clinic Staff. Here are some of the most common causes of true under-eye circles. 1  Allergies. 2  Atopic dermatitis (eczema) 3  Contact dermatitis. 4  Fatigue.  Heredity â dark under-eye circles can run in families.
Dark circles under the eyes are one of the most common cosmetic complaints that people have. They occur when dark blood pooling in veins under the skin shows through. The reason this occurs specifically in this area, under the eyes, is that the skin there tends to be thinner than on other parts of the body. This problem tends to worsen with age and sun and other damage to the skin, as the skin deteriorates over time. There is no simple treatment for this problem.