The myoepithelial cells
were located at the base of the acinar cells as well as intercalated and striated ducts, and were stellate in shape.
The histological and Immunohistochemical evidence of squamous metaplasia from myoepithelial cells
in the breast.
(1) The loss of myoepithelial cells
around benign and neoplastic apocrine lesions is well documented (Figure 2).
b and c, The papillae are covered by a single population of uniform columnar cells with focally stratified nuclei lacking a myoepithelial cell
Scant myoepithelial cells
may be present within the papillae or in the epithelial proliferation, but an intact myoepithelial cell
layer is absent.
are ectodermally derived contractile cells that act as smooth muscle cells.
The two illustrative examples are of small glandular proliferations in the breast that show complete loss of expression in one, and focal loss in the other, of myoepithelial cell
They postulated that these ultrastructural findings, together with immunophenotypic expression of S100 protein, were indicative of modified myoepithelial cells
as the possible cell of origin of OFMTs.
The slit-like spaces consisted of a double layer of epithelial and myoepithelial cells
Both the papillae and the dilated branching glandular channels are lined by a double layer of bland epithelium consisting of an outer layer of cuboidal myoepithelial cells
and an inner layer of columnar cells, often with apical snouts.
Around the adenomere it is possible to distinguish stellate myoepithelial cells
, as well as around the intercalated ducts (Leal et al., 2003; Amano et al., 2012).
However, the final histological analysis showed that this tumor consisted of epithelial and myoepithelial cells
appearing in tubular and cribriform patterns.