In developing muscle, the mesothelium also develops deep invaginations, which penetrate far into the underlying connective tissue and then detach from the epithelium covering the surface of the rudiment to form blind cavities delimited by epithelial cells, which later differentiate into myoepithelial
cells (Dolmatov and Ivantey, 1993).
(4) Histollogically the epithelial component can show pancreatic, gastric, intestinal or brunner gland tissue, which can be confused with ectopic pancreatic tissue, myoepithelial
hamartoma, fibroadenoma, and mesenchymal lesions.
cells (MEC) proliferate in complex and mixed canine mammary gland tumors.
Inoculation of cadmium-treated cells into mice produced invasive, metastatic anaplastic carcinoma with myoepithelial
Oxytocin release from the pituitary as well as the placenta increases markedly in the early phases of labor, as does production of oxytocin receptor proteins by the myometrium and the myoepithelial
cells of the breast.
The "safe distance" for this tumor will be intuitively greater than for a more indolent carcinoma, such as epithelial myoepithelial
The presence of myoepithelial
cells is not always easily appreciated on hematoxylin-eosin sections.
These features overlap with those of other salivary gland neoplasms such as pleomorphic adenoma, low-grade mucoepidermoid carcinoma, myoepithelial
carcinoma, low-grade cribriform cystadenocarcinoma, oncocytic carcinoma, salivary duct carcinoma, and acinic cell carcinoma.
(1) Primary nasopharyngeal ESMC can often be misdiagnosed with squamous cell carcinoma nasopharynx, melanomas, lymphomas, soft tissue sarcomas, Ewing sarcoma, skeletal chondrosarcomas, chordomas, parachordomas, myoepithelial
carcinoma, myxopapillary ependymomas, chordoid meningiomas, and myxoid liposarcoma.
The terminal buds were in the form of cell clusters and contained glycogen rich inner luminal and outer myoepithelial
precursor cells at 11.5 cm CVRL (80th day).
Pathological diagnosis was obtained: schwannomas (8 cases), salivary pleomorphic adenomas (5 cases), angiomas (5 cases), branchial cysts (3 cases), Castleman disease (2 cases), and 1 case for each of the followings: lymphoepithelial cysts, thyroid cancer lymphatic metastasis, phosphate urinary mesenchymal tissue tumor, basal cell adenoma, myoepithelial
carcinoma, fibroma, adenoid cystic carcinoma, and lipoma.