Any time you do not know what your doctor is talking about, feel free to ask her to explain it.

Your results are saying that your pap smear was abnormal. Your doctor wants to take a closer look to see if you might have endometrial cancer. Usually paps check for cervical cancer, but sometimes they can show a doctor that a person might have endometrial cancer. That would cancer in your uterus as opposed to your cervix. It's not a sure thing though, which is why you need to go back in. The biopsy will tell the doctor more about it than the pap did.

For more information:
http://www.wdxcyber.com/npapvg03.htm
http://www.womentowomen.com/sexualityandfe rtility/ascuspaptestacronyms.asp

Thanks Llewellyn for answering.
pl