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.
What are dark circles under the eyes? Dark circles under the eyes, sometimes called shadows or dark rings under the eyes, are the appearance of dark skin between the lower eyelid and the top of the cheek. Dark circles under the eyes can occur in infants, children, adolescents and adults, and to men and women alike. It is commonly assumed that dark circles under the eyes are caused by a lack of sleep, and poor quality sleep and insomnia can certainly cause this condition.