Abstract Background Invasive micropapillary carcinoma (IMPC) is a rare malignant breast tumor and variant form of invasive ductal that an aggressive neoplasm the human canine mammary gland. The importance microenvironment in cancer development has gradually been recognized, but little known about cell types outlining cystic space IMPC. This study aimed to characterize neoplastic cells Results I...

A 69-year-old japanese female with epithelial myoepithelial carcinoma (EMC) in the parotid gland is reported. The tumor, 3.5 x 4.0 x 1.5 cm in size, was located in the left parotid gland. Histopathological examination of the surgically removed tumor revealed that it was composed of double-layered, tubule-like structures formed by inner eosinophilic ductal cells and outer clear cells, as well as...

We have characterized precisely the cytokeratin expression pattern of sweat gland myoepithelial cells and have identified conditions for propagating this cell type and modulating its differentiation in culture. Rare, unstratified epithelioid colonies were identified in cultures initiated from several specimens of full-thickness human skin. These cells divided rapidly in medium containing serum,...

Myoepithelial cells from mammary glands, the modified sweat glands of bovine muzzle, and salivary glands have been studied by electron microscopy and by immunofluorescence microscopy in frozen sections in an attempt to further characterize the type of intermediate-sized filaments present in these cells. Electron microscopy has shown that all myoepithelial cells contain extensive meshworks of in...

A clonal neoplastic epithelial duct cell (HSGc) of human salivary gland origin has a fine structure similar to the intercalated duct cell and the capacity to express secretory component and lactoferrin. HSGc cells tend to form an occasional glandular arrange ment in vitro and in vivo, and transplantation of cells into nude mice resulted in production of adenocarcinoma. By repeated single cell c...

A clonal neoplastic epithelial duct cell (HSGc) of human salivary gland origin has a fine structure similar to the intercalated duct cell and the capacity to express secretory component and lactoferrin. HSGc cells tend to form an occasional glandular arrangement in vitro and in vivo, and transplantation of cells into nude mice resulted in production of adenocarcinoma. By repeated single cell cl...

Among the various tumours affecting lacrimal gland, pleomorphic adenomas though most common can present clinically and radiologically as worrisome tumours. Histopathologic diagnosis hence is very critical for these We a case of adenoma gland which we encountered at our institutes. The patient was 46-year-old male who came with complaints gradually progressing swelling in right eye not associate...

Epithelial myoepithelial carcinoma is a rare biphasic low grade neoplasm of salivary glands; it most commonly occurs in the parotid gland but can also arise in minor salivary glands. Here a case of 58-year-old female presented with left cheek swelling of one-year duration. CT scan revealed a localized submandibular salivary gland tumor mass not involving surrounding tissues. Histological examin...

Myoepithelial carcinomas are tumors arising from myoepithelial cells mainly or exclusively, they showed varied cell types and patterns leading to a wide range of differential diagnoses. Immunohistochemical analysis helped to determine the diagnosis. Recognition of myoepithelial carcinoma is clinically significant because, compared to its benign counterpart (myoepithelioma), It has increased fre...