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  • Title: Pure intraductal carcinoma of the parotid gland: Cytologic findings on FNA sample. Report of one case.
    Author: Barizzi J, Merlo E, Schönegg R, Pelloni R, Mazzuchelli L, Fulciniti F.
    Journal: Diagn Cytopathol; 2017 Nov; 45(11):1046-1049. PubMed ID: 28646544.
    Abstract:
    One case of intraductal carcinoma of the parotid gland in a 67-year-old male patient is here introduced. The patient, who had a one-year history of a parotid mass, had undergone ultrasound and MRI examination that disclosed a 13x4x3 mm well delimited nodular mass of the accessory lobe of his left parotid gland. Ultrasound-guided Fine Needle Aspiration (FNA) had been performed by the clinician. The obtained smears showed widespread cellular necrosis in which cellular clusters with moderate and focally severe atypias displayed papillary and cribriform architecture and were admixed with sheets of epithelial cells with less striking nuclear atypias, squamous, or apocrine metaplasia. Histopathological examination disclosed a pure intraductal carcinoma of the parotid gland with classical morphology, which was radically excised. The differential cytological diagnosis of pure intraductal carcinoma of salivary glands may be difficult and comprises mucoepidermoid carcinoma as well as "in situ" carcinomas developping in the context of sclerosing polycystic adenosis, mammary analogue secretory carcinoma (MASC) of the salivary glands and cystic variants of salivary adenocarcinoma NOS (formerly called cystadenocarcinomas).
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