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Courtesy of Paul Traughber, M.D., Boise, Idaho. Figure 1 is a computed tomography (CT) scan of a normal brain. Figure 2 is a CT

Strabismus is a vision problem in which both eyes do not look at the same point at the same time. Three of the most common types

For a spinal tap (lumbar puncture), you lie on your side with your knees drawn up toward your chest. This position helps widen the

Follow-up for an abnormal Pap test may include a colposcopy. The doctor uses a microscope (colposcope) to look at the cervix

Courtesy of Intermountain Medical Imaging, Boise, Idaho. Figure 1 shows a bone density test of a healthy older woman. The X-ray

Kidney stones are made of salts and minerals in the urine that stick together to form small "pebbles." They may form when the

Kidney stones are made of salts and minerals in the urine that stick together to form small "pebbles." They are usually painless

Extracorporeal shock wave lithotripsy (ESWL) uses shock waves to break a kidney stone into small pieces. These pieces can more

Percutaneous nephrolithotomy and nephrolithotripsy are procedures in which a small incision is made in a person's back to remove

During ureteroscopy, the doctor passes a thin viewing instrument (ureteroscope) through your urethra and bladder into your ureter