👉 Fibrilliform refers to a type of breast tissue that is often seen in women with certain conditions, such as polycystic ovary syndrome (PCOS) or cystic fibrosis. This condition affects both male and female individuals and can lead to changes in the appearance of the breasts, particularly in the shape and size of the nipples and the texture of the skin on these areas. The term "fibrilliform" is often used to describe this type of breast tissue, as