To analyze the origin of them, we performed the immunostaining with KRT14 that was expressed in acinar and myoepithelial cells
and [alpha]-SMA that was expressed in myoepithelial cells
in the LG, and they were not expressed in [nestin.sup.+] cells (data not shown).
H and E stained sections revealed diffuse effacement of glandular architecture by a mixture of glandular epithelium and myoepithelial cells
within a mesenchyme-like background.
Intercellular cystic spaces lined by basement membrane material and biphasic cellularity with myoepithelial cells
intermixed with epithelial cells.
Myoepithelioma is a benign epithelial salivary gland tumor, having plasmacytoid or spindled myoepithelial cells
. (18) Differentiation between benign and malignant tumors is not possible without histopathology.
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.
Histology of the excised specimen identified proliferating ductules within a myxoid stroma, with spindle- to oval-shaped myoepithelial cells
and no mitotic figures (figure 2).
Sometimes the intermediate cell population of mucoepidermoid carcinoma were closely resembled the basal or myoepithelial cells
of pleomorphic adenoma.
were present in the background in keeping with a benign lesion.
The most common benign salivary gland neoplasm is pleomorphic adenoma, which constitutes varying proportions of ductal and myoepithelial cells
.1 Tumours with homogenous pattern are composed of either pure myoepithelial cells
Two different cell types formed the mammary gland: the myoepithelial cells
and luminal cells, which can differentiate either into ductal cells or milk-producing cells.
The basal half of the mesothelium is occupied by myoepithelial cells
, whose contractile processes are organized into longitudinal, circular, or oblique gut musculature.
Immunohistochemical analysis also confirmed no myoepithelial cells
were stained with p40 in the lesion.