An ultrasound allows doctors to view images of the organs and soft tissues inside your body. Using sound waves, an ultrasound provides a real-time picture of your organs. This better allows medical ...

An ultrasound scan is one of the main tests doctors use to diagnose cholecystitis. On a scan, clinicians may be able to spot the presence of gallstones, which can cause this condition. Cholecystitis ...

A contracted gallbladder means that your gallbladder has shrunk in size and may not be visible on an imaging test. This can prevent your gallbladder from properly functioning. Your gallbladder is a ...

Dr. Keith Roach is a physician at Weill Cornell Medical College and New York Presbyterian Hospital. He writes an educational column on infectious diseases, public health and sports medicine. DEAR DR.