Fine needle aspiration cytology of lymphoepitheliomalike carcinoma of the parotid gland. A case report. 1994

M B Thompson, and B R Nestok, and J L Gluckman
Department of Pathology, University of Cincinnati Medical Center, Ohio 45267-0529.

Lymphoepitheliomalike carcinoma is a rare primary neoplasm of the salivary gland that has also been reported to occur in other primary sites. In this report we document the clinical, cytomorphologic and histologic findings of a case affecting the parotid gland. The patient was a 48-year-old, white woman with a two-month history of a swelling on the left side of the face and associated pain. Physical examination and computed tomography revealed a left parotid mass with spread to the superior cervical lymph nodes. Fine needle aspiration (FNA) of the parotid and upper cervical nodes revealed multiple, irregular aggregates of epithelial cells with a high nuclear/cytoplasmic ratio and finely granular chromatin. Prominent, single, round nucleoli were present. Multiple chromocenters were also noted. These aggregates were found in a background of abundant, benign, small and large lymphocytes. The patient underwent parotidectomy with radical neck dissection. Histopathologic examination of the parotid showed a poorly differentiated carcinoma in a benign lymphoid background consistent with lymphoepitheliomalike carcinoma, with metastatic tumor involving two lymph nodes of the parotid compartment. To our knowledge, this is the first reported case of FNA biopsy of this unusual entity. The cytomorphologic features of these neoplasms when aspirated from the salivary gland are sufficiently distinctive to allow a specific diagnosis of lymphoepitheliomalike carcinoma.

UI MeSH Term Description Entries
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D010306 Parotid Gland The largest of the three pairs of SALIVARY GLANDS. They lie on the sides of the FACE immediately below and in front of the EAR. Gland, Parotid,Glands, Parotid,Parotid Glands
D010307 Parotid Neoplasms Tumors or cancer of the PAROTID GLAND. Cancer of Parotid,Parotid Cancer,Cancer of the Parotid,Neoplasms, Parotid,Cancer, Parotid,Cancers, Parotid,Neoplasm, Parotid,Parotid Cancers,Parotid Neoplasm
D002294 Carcinoma, Squamous Cell A carcinoma derived from stratified SQUAMOUS EPITHELIAL CELLS. It may also occur in sites where glandular or columnar epithelium is normally present. (From Stedman, 25th ed) Carcinoma, Epidermoid,Carcinoma, Planocellular,Carcinoma, Squamous,Squamous Cell Carcinoma,Carcinomas, Epidermoid,Carcinomas, Planocellular,Carcinomas, Squamous,Carcinomas, Squamous Cell,Epidermoid Carcinoma,Epidermoid Carcinomas,Planocellular Carcinoma,Planocellular Carcinomas,Squamous Carcinoma,Squamous Carcinomas,Squamous Cell Carcinomas
D002466 Cell Nucleolus Within most types of eukaryotic CELL NUCLEUS, a distinct region, not delimited by a membrane, in which some species of rRNA (RNA, RIBOSOMAL) are synthesized and assembled into ribonucleoprotein subunits of ribosomes. In the nucleolus rRNA is transcribed from a nucleolar organizer, i.e., a group of tandemly repeated chromosomal genes which encode rRNA and which are transcribed by RNA polymerase I. (Singleton & Sainsbury, Dictionary of Microbiology & Molecular Biology, 2d ed) Plasmosome,Cell Nucleoli,Nucleoli, Cell,Nucleolus, Cell,Plasmosomes
D002843 Chromatin The material of CHROMOSOMES. It is a complex of DNA; HISTONES; and nonhistone proteins (CHROMOSOMAL PROTEINS, NON-HISTONE) found within the nucleus of a cell. Chromatins
D003937 Diagnosis, Differential Determination of which one of two or more diseases or conditions a patient is suffering from by systematically comparing and contrasting results of diagnostic measures. Diagnoses, Differential,Differential Diagnoses,Differential Diagnosis
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D001707 Biopsy, Needle Removal and examination of tissue obtained through a transdermal needle inserted into the specific region, organ, or tissue being analyzed. Aspiration Biopsy,Puncture Biopsy,Aspiration Biopsies,Biopsies, Aspiration,Biopsies, Needle,Biopsies, Puncture,Biopsy, Aspiration,Biopsy, Puncture,Needle Biopsies,Needle Biopsy,Puncture Biopsies

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