Plasmacytoid myoepithelioma of the laryngeal region: a case report. 1995

F Martínez-Madrigal, and H Santiago Payán, and A Meneses, and H Domínguez Malagón, and M E Rojas
Department of Pathology, Hospital General Dr. Miguel Silva, Morelia Mich. Mexico.

The first case of plasmacytoid myoepithelioma of the laryngeal region is presented. The tumor showed immunoreactivity for the S-100 protein, low molecular weight cytokeratin, and vimentin. Staining was negative with muscular actin and glial fibrillar acid protein. By electron microscopy the tumor cells showed abundant microfibrillar material, elongated densities resembling smooth muscle dense bodies, pinocytic vesicles, and replicated basal lamina. The myoepithelial nature of plasmacytoid tumors of the salivary gland has been questioned.

UI MeSH Term Description Entries
D007822 Laryngeal Neoplasms Cancers or tumors of the LARYNX or any of its parts: the GLOTTIS; EPIGLOTTIS; LARYNGEAL CARTILAGES; LARYNGEAL MUSCLES; and VOCAL CORDS. Cancer of Larynx,Laryngeal Cancer,Larynx Neoplasms,Cancer of the Larynx,Larynx Cancer,Neoplasms, Laryngeal,Cancer, Laryngeal,Cancer, Larynx,Cancers, Laryngeal,Cancers, Larynx,Laryngeal Cancers,Laryngeal Neoplasm,Larynx Cancers,Larynx Neoplasm,Neoplasm, Laryngeal,Neoplasm, Larynx,Neoplasms, Larynx
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D009208 Myoepithelioma A usually benign tumor made up predominantly of myoepithelial cells. Myoepithelial Tumor,Myoepithelial Tumors,Myoepitheliomas,Tumor, Myoepithelial,Tumors, Myoepithelial
D009418 S100 Proteins A family of highly acidic calcium-binding proteins found in large concentration in the brain and believed to be glial in origin. They are also found in other organs in the body. They have in common the EF-hand motif (EF HAND MOTIFS) found on a number of calcium binding proteins. The name of this family derives from the property of being soluble in a 100% saturated ammonium sulfate solution. Antigen S 100,Nerve Tissue Protein S 100,S100 Protein,S-100 Protein,S100 Protein Family,Protein, S100,S 100 Protein
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man

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