Hallow Dear, I do not find any abnormal reporting in the study of your nipple growth. Squamous epithelium is the tissue that covers the skin. It is a natural tissue present on the skin. Under the skin of the nipple and areola, some smooth or involuntary muscles are there which help the expression of milk while the child is sucking the milk. Also there are milk producing ducts underneath the areola while there are ducts in the nipples also for passage of milk. It is likely that all the tissues have contributed in the formation of the growth you had on your nipple. During the biopsy process, all these tissues have been picked up to some extent. However, all the tissue in the biopsy are benign. Hence you do not have to be under the stress of cancer. I hope this helps you to distress yourself from the concern of cancer. Dr. Nishikant Shrotri