Xeroderma Pigmentosum variant biopsy

I had my biopsy for the Xeroderma Pigmentosum C variant today- the astrocytoma brain tumour risk one. Results likely December/January. If positive my tumour  (in the lab, I have no active disease on scans) will have to be tested for XP genes. Nothing to worry about whatever the results are because I feel I have everything under control right now but rather interesting in a strange way. The DNA blood samples weren't too bad but my bum is a bit sore from the biopsy... Too much info maybe.