K.P.
You should consult your OBGYN. 4 inches is pretty big. I would have someone double check the film, just to be safe. I have one that is 2cm. After getting my first ultrasound on it, the nurse told me it was 2 inches. I have a friend who is a radiologist review it and it was 2 cm. That was about 10 years ago. I had a CT scan 2 weeks ago and it is still there, same size. Every once in a while I can feel it in there. I am told it will go away when I hit menopause.