<unk>  of the<unk>  is a proliferative epithelial lesion (epitheliosis) of the<unk>  Although a rare disease, it is more common in young female adults and is called Juvenile<unk>  or Swiss cheese disease. It is most commonly detected as a solitary firm mass located on the upper outer quadrant of the<unk> and only on one side. Its structure is very similar to papilloma of the<unk> pathologically.
Papillomatosis of breasts
Duct ectasia of breast
Tuberous breasts
Breast eczema
Nevus
Lipoma
Xanthoma
Adenomyoepithelioma of the breast