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Peripheral primitive neuroectodermal tumor of the parotid gland region: Report of a case with fine‐needle aspiration findings
Author(s) -
Helsel Jay C.,
Mrak Robert E.,
Hanna Ehab,
Parham David H.,
Bardales Ricardo H.
Publication year - 2000
Publication title -
diagnostic cytopathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.417
H-Index - 65
eISSN - 1097-0339
pISSN - 8755-1039
DOI - 10.1002/(sici)1097-0339(20000301)22:3<161::aid-dc6>3.0.co;2-y
Subject(s) - medicine , parotid gland , peripheral , pathology , fine needle aspiration , anatomy , biopsy
A case of peripheral primitive neuroectodermal tumor of the parotid gland region in a 38‐yr‐old woman is reported. She had a 1‐yr history of a large, firm, and slightly tender left parotid‐region mass. CT scan showed an invasive tumor involving the parotid gland, mandible, infratemporal fossa, and parapharyngeal space. Fine‐needle aspiration cytology of the mass showed a highly cellular, poorly cohesive smear pattern exhibiting small cuboidal cells, with fibrillary cytoplasm forming occasional rosette‐like structures. Numerous intact single cells with fragile cytoplasm, finely granular chromatin, and inconspicuous nucleoli were present together with free‐lying nuclei in the background. Histologic, immunohistochemical, and ultrastructural findings confirmed the diagnosis. Diagn. Cytopathol. 2000;22:161–166. Published 2000 Wiley‐Liss, Inc.