Caption |
Mammary gland: the architecture of mammary lobules is preserved. Ducts and acini are mildly distended by a proteinaceous fluid, lipid vacuoles, and desquamated dysplastic cells. They are lined by a cuboidal epithelium where cells generally do not pile-up disordely. Some cells (arrowheads) lining these ducts resemble the "large clear cells", a type of cell that is less differentiated than most of the other luminal cells. There is mild fibrosis and interstitial pleocellular inflammation. The mammary fat pad contains brown fat pad (left portions of the photomicrograph). |