Medicine in the twenty-first century is venturing beyond the realm of dreams, firing our imagination and bringing new hope in the battle against disease. Technology is advancing rapidly, giving surgeons the ability to look into tissues and organs that were previously hidden. One remarkable camera can be swallowed, seeking out abnormalities during its fantastic voyage. Portable, miniaturized ultrasound systems can go to the patient, its images equal to those of larger units. Welcome to a whole new world in the medical arena.