Would a transvaginal ultrasound show cervical cancer?

Only if large: Cervical cancer can be microscopic (very early) or large with a tumor that you can feel on pelvic examination as well as see on ultrasound. So, it can miss a lot in between. It is NOT a good tool to use for screening for cervical cancer. But sometimes it can help to evaluate or look at the upper cervix to see if it is enlarged. The lower cervix a doctor can seen clearly when you get a pelvic exam

Yes, but...: Any disease or life event will always display on its own pattern of full spectrum; so will cervical cancer. At its early stage, the affected feels nothing. As the disease advances, it may locally advance to damage and distort local.nearby tissue, and to spread to far sites. So, if not treated timely, what you concern about will appear on its course of progress. US may suspect such but CT defines..