Colcospy

So yesterday I went for colcospy due to 3 years of HPV showing on test with no abnormal cells detected so of I went for my colcospy she put the viniger spray on and seen a little patch she said she thinks it’s from the HPV and said I will no more when I put the iodine on she then said ye it’s from the HPV but how can she tell that with out a biopsy she did say bfore colcospy if I see anything that needs biopsy are you happy for me to do it witch I agreed am just worried that she didn’t biopsy the little patch that came up with the iodine