Caption |
Mammary gland: at its' periphery, the neoplasm formed hollow frond-like structures that contained a proteinaceous fluid with a few degenerated neoplastic cells. In these areas, the basal layers of the neoplastic epithelium clearly showed nuclear palissading. This type of nuclear palissading is reminiscent of myoepithelial differentiation that is observed in type P tumors. However, unlike type P tumors, this neoplasm does not display ductal differentiation nor areas of squamous differentiation. |
Description |
Adenocarcinoma, glandular, acinar, cystic, solid with secondary lumens, mammary gland |
Age at Necropsy |
unknown |
Notes |
This tumor forms fronds that are reminiscent of fronds observed in type P tumors. However, this neoplasm differs from type P tumors in that the mitotic activity is not most important at the tip of the fronds and ductal differentiation with squamous metaplasia are absent. |
Contributor |
Ward JM (J:107304) |
Pathologist |
Mikaelian I (J:94320) |
Method |
H&E |
