Mouse - CNS - cns_021b.tif
Image Name: cns_021b.tif
Image Annotation: A nodule composed of atypical metaplastic squamous cells arises in a field of alveolar hyperplasia. In the surrounding mammary tissue the acini display varying degrees of cellular atypia with nuclear enlargement, hyperchromasia, and pleomorphism. There is increased mitotic activity.
Image donated by: William Weiss