myoepithelial cells


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Related to myoepithelial cells: myofibroblast

myoepithelial cells

[‚mī·ō‚ep·ə′thē·lē·əl ‚sel]
(histology)
Contractile epithelial cells resembling smooth muscle cells that are present in glands, notably the mammary gland, and aid in secretion.
References in periodicals archive ?
Flattened myoepithelial cells with long cytoplasmic processes were observed between the epithelial cells and basement membrane of intercalated ducts, as reported in human beings by Yaku.
Unlike UDH, solid papillary carcinomas often lack a myoepithelial cell layer and will be negative by myoepithelial (smooth muscle myosin and p63) markers.
The myoepithelial cells exhibited diffuse, moderate nuclear immunoreactivity for p63 (Figure 1E).
Keywords: Encapsulated papillary carcinoma, Myoepithelial cells, Prognosis, Immunohistochemistry.
Two components are required to reliably make a diagnosis of PA: myoepithelial cells and chondromyxoid stroma.
The S-100 marker, which identifies the protein S-100, is not specific enough because it is expressed not only in melanocytes but also in adipocytes, Schwann cells, and myoepithelial cells (24, 26-30).
Furthermore, a 4-week exposure in the same conditions reveals a reduction in cytokeratin expression and MDA levels of the parotid gland and a reduction of the myoepithelial cells in the submandibular gland.
Myoepithelioma is a benign epithelial salivary gland tumor, having plasmacytoid or spindled myoepithelial cells.
In contrast to apocrine hidrocystomas, decapitation secretion, periodic acid Schiff-positive and diastase- resistant granules in secretory cells and myoepithelial cells are absent in eccrine hidrocystomas.
Histological analysis reveals proliferation of the ductal epithelium surrounded by myoepithelial cells and a fibro vascular stroma.
Based on the study of MacNulty (1996), figure 7, the normal appearance of the mammary gland is when the inner layer are the actual ductal epithelial cells whereas the outer layer of cells is, in fact, a layer of myoepithelial cells.
The electron microscopy: In the control group, the basement membrane was observed with myoepithelial cells.