Cytodiagnosis of unusual metastases in parotid gland

Lung adenocarcinoma often makes metastasis to the brain, liver, kidneys, bone, bone marrow and adrenal glands. It can also make metastasis to other parts of the body rarely for example eye, nose, parotid gland and paranasal sinus. We did not encounter with combined ocular bulbus and the maxillary sinus metastases of lung cancer in the accessible literature. In this case report, a patient who was combined ocular bulbus and the maxillary sinus metastases of lung adenocarcinoma will be discussed.

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Unusual Metastases from a Pleomorphic Adenoma of the Parotid Gland: A Case and Literature’s Review

International Journal of Otolaryngology and Head &amp Neck Surgery ◽

10.4236/ijohns.2013.26048 ◽

2013 ◽

Vol 02 (06) ◽

pp. 232-235

Author(s):

Giuditta Mannelli ◽

Lucio Rucci ◽

Oreste Gallo

Keyword(s):

Parotid Gland ◽

Pleomorphic Adenoma ◽

Unusual Metastases

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Ultrastructure of the Parotid Gland of the Nine-Banded Armadillo

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100080626 ◽

1977 ◽

Vol 35 ◽

pp. 640-641

Author(s):

J. R. Ruby

Keyword(s):

Endoplasmic Reticulum ◽

Parotid Gland ◽

Periodic Acid ◽

Acinar Cells ◽

Duct System ◽

Parotid Glands ◽

Dasypus Novemcinctus ◽

Anterior Portion ◽

Periodic Acid Schiff ◽

Thin Sections

Parotid glands were obtained from five adult (four male and one female) armadillos (Dasypus novemcinctus) which were perfusion-fixed. The glands were located in a position similar to that of most mammals. They extended interiorly to the anterior portion of the submandibular gland.In the light microscope, it was noted that the acini were relatively small and stained strongly positive with the periodic acid-Schiff (PAS) and alcian blue techniques, confirming the earlier results of Shackleford (1). Based on these qualities and other structural criteria, these cells have been classified as seromucous (2). The duct system was well developed. There were numerous intercalated ducts and intralobular striated ducts. The striated duct cells contained large amounts of PAS-positive substance.Thin sections revealed that the acinar cells were pyramidal in shape and contained a basally placed, slightly flattened nucleus (Fig. 1). The rough endoplasmic reticulum was also at the base of the cell.

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Ultrastructure of myoepithelial cell in parotid gland

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100103772 ◽

1988 ◽

Vol 46 ◽

pp. 342-343

Author(s):

C. N. Sun

Keyword(s):

Parotid Gland ◽

Osmium Tetroxide ◽

Individual Cell ◽

Branching Processes ◽

Muscle Cells ◽

Myoepithelial Cells ◽

Uranyl Acetate ◽

Thin Sections ◽

Gland Carcinoma ◽

Parotid Gland Carcinoma

Myoepithelial cells have been observed in the prostate, harderian, apocrine, exocrine sweat and mammary glands. Such cells and their numerous branching processes form basket-like structures around the glandular acini. Their shapes are quite different from structures seen either in spindleshaped smooth muscle cells or skeletal muscle cells. These myoepithelial cells lie on the epithelial side of the basement membrane in the glands. This presentation describes the ultrastructure of such myoepithelial cells which have been found also in the parotid gland carcinoma from a 45-year old patient.Specimens were cut into small pieces about 1 mm3 and immediately fixed in 4 percent glutaraldehyde in phosphate buffer for two hours, then post-fixed in 1 percent buffered osmium tetroxide for 1 hour. After dehydration, tissues were embedded in Epon 812. Thin sections were stained with uranyl acetate and lead citrate. Ultrastructurally, the pattern of each individual cell showed wide variations.

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