Thanks for the thanks. Glad to have helped.
Dr., Handsfield, I can't thank you enough for your time to give your perspective. To answer your question, I am 29 and was told although not common, that sebborheic keratoses can and do occur. I am fair skinned and have plenty of moles so at the time it seemed feasible. Something just isn't adding up, and I understand that either way in the big picture this is not a huge deal, but as it stands, this adds stress and confusion to disclosure etc. In the 2 and a half years since the spot first showed up until present, neither of my two partners in that time frame developed any visual symptoms. I obviously want to be responsible, so I guess I will explain this whole situation as best as I can when the opportunity presents itself to the next person.
Anyhow, thanks again for your time and thorough discussion. I greatly appreciate it as I am sure everyone else does!
Welcome to the forum and thanks for your question. However, I'm not sure how much I can help. Your questions would be better answered by a dermatologist than an STD specialist.
I'm curious about your age. Seborrheic keratoses are age associated; my understanding (remembering back to my rudimentary dermatology training more than 30 years ago) is that they are primarily seen in older persons -- in whom gential warts are rare.
To your specific questions:
1) This is definitely something to ask your dermatologist. I don't know the frequency with which seborrheic keratosis may recur.
2) I guess I'll just have to disagree with your dermatologist. The evidence against hand-to-genital HPV transmission (and vice versa) is strong: different HPV types cause the large majority of genital versus hand warts. If such transmission could occur, then genital warts due to hand types shoudl be common, as should genital types causing hand warts. But this rarely occurs.
3) Although you can find websites that promote acetic acid testing to identify HPV-infected tissues, in fact this is a terrible way to diagnose HPV lesions. We never use it in my STD clinic, and I recommend against anybody ever trying it. HPV infected tissues often don't turn white, and many white changes are not due to HPV. The only legitimate purpose for this test is in helping gynecologists decide exactly where to biopsy a woman's cervix. And there are no other tests either that would "draw out" HPV.
4) I would not think a biopsy would be inconclusive. On the other hand, I agree with your reasoning: it is very peculiar that a recurrence of a warty lesion in exactly the same spot would be due to an entirely different diagnoses. You should discuss this with your dermatologist. In doing so, I would suggest that the current pathologist be sent the slides or tissue from your earlier biopsy, if they were retained in the lab. (Most pathology labs hold on to slides, if not tissues, for many years.) Examining the two specimens side by side might help determine which diagnosis, or perhaps both, was accurate.
I hope this has helped with perspective, if not definitive answers. Best regards-- HHH, MD