Would cervical cancer invading the pelvic sidewall or obstructing the kidney be seen on trans vaginal or pelvic ultrasound?

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..