Caption |
Mammary gland: the mammary gland is markedly diffusely enlarged by markedly hyperplastic acini and ducts. In adddition, there are multifocal areas of carcinoma in situ (*). These areas are characterized by epithelial cells piling-up in the ducts and acini, dilation of the lumen of the ducts and acini, and mild to moderate interstitial fibrosis. In addition, there is prominent abrupt cornification (C) in the lumen of a moderate number of ducts and acini, resulting in the formation of large rafts of "ghost" cells. |
