I've had both of these results. You don't say how old you are, but younger women tend to have denser breasts that make mammograms difficult to read. It's likely that's the only reason they want to do further tests. I have decided to get mammograms only every several years (not every year) unless I notice a change in my breasts, after reading about the latest findings concerning the high number of false positives and unnecessary treatments.
HPV is a virus that over half of our adult population carries. It comes in many forms and only a few forms can eventually lead to cancer in a small percentage of women. The test they will do next is called a Colposcopy - here is a resource:(http://www.mayoclinic.com/health/colposcopy/MY00236 )
I've had one done, and nothing was found. My sister and my stepdaughter have had several, and biopsy, and removal of abnormal cells. They are both fine now. Please don't worry until you have more information. The vast majority of people with abnormal paps and HPV never see it develop into anything more serious. More information:
http://www.cdc.gov/std/hpv/default.htm
The high occurrance of HPV has led to the development of a vaccine to prevent this that is only effective when given to girls before they become sexually active. My daughter is getting this at the recommended age of 12! More information:
http://www.cdc.gov/std/hpv/STDFact-HPV-vaccine-young-wome...