I had a papsmeare and the doctor said he can feel either a cyst it a tumor. I'm getting an ultrasound friday. How is that performed?

Ultrasound how-to. The technician or your doctor will take some gel and place it on your skin over the area to imaged. The ultrasound head puts out noiseless waves of sound which echo back. The differences in time and quality of the echoes produce an image. Doesn't hurt, just leaves you sticky afterwards!
Abdominal/Vaginal. There are two ways - depending on what was ordered by your doctor. Often, both ways are performed. Here is some good information on the tests: http://patienteducationcenter.Org/articles/pelvic-ultrasound-and-transvaginal-ultrasound/.