Caption |
Mammary gland: the neoplasm is composed of a few trabeculae and tubules interspersed among ill-defined bundles of neoplastic spindloid cells. There is gradual transition between some of the trabeculae and the spindloid cells. Neoplastic cells with an epithelial phenotype are polygonal, with distinct cell borders and a moderate amount of strongly amphophilic cytoplasm. Neoplastic cells with a mesenchymal phenotype are spindloid to oat-shaped, with distinct cell borders and a moderate amount of delicately fibrillar acidophilic cytoplasm and a slightly elongated hyperchromatic nucleus. The stroma is loose and edematous in the right portion of the photomicrograph, and dense and amorphous in the left portions of the photomicrograph. |
