This is one of the puzzles we are facing in daily practice everyday, since our dx will dictate the way clinicians managing the patient, such as a big LEEP versus a radical histerectomy in this case. In this  case, I will communicate with clinician and tell your concerns. As long as you and clinician are on the same page, you can sign it out as " extensive carcinoma in situ, cannot rule out invasive carcinoma else where". 

One of the differences I observed between China and US pathologists is that pathologists in US are close friends with clinicians and we are always the team with patient care as our central task. If I have any questions regarding the case, I will call clinicians immediately and nicely chat with him/her about the case and my concern. In most situations, it promotes the bonding between two sides and resolves puzzle on both sides. It also saved me many many times for making stupid mistakes. I hope we pathologists try to make clinicians as your friends, not your professional enemies.