Browsing by Author "Pusztaszeri, Marc"

Filter results by typing the first few letters
Now showing 1 - 2 of 2
  • Thumbnail Image
    Item
    Columnar cell variant of papillary thyroid carcinoma: Cytomorphological characteristics of 11 cases with histological correlation and literature review
    (WILEY, 2017-01-01) Bongiovanni, Massimo; Mermod, Maxime; Canberk, Sule; Saglietti, Chiara; Sykiotis, Gerasimos P.; Pusztaszeri, Marc; Ragazzi, Moira; Mazzucchelli, Luca; Giovanella, Luca; Piana, Simonetta
    BACKGROUNDThe columnar cell variant of papillary thyroid carcinoma (PTC-CCV) is a rare entity that demonstrates a more aggressive clinical course compared with the more common subtypes of PTC. On histology, it is defined by papillae or gland-like structures lined by columnar cells displaying prominent nuclear stratification. Because to the authors' knowledge no characteristic cytomorphological features have been identified to date and typical features of PTC often are absent on cytology, the diagnosis of PTC-CCV by fine-needle aspiration (FNA) is challenging. This prompted the authors to evaluate a series of PTC-CCV cases to identify features that could facilitate its diagnosis by FNA. METHODSA total of 11 surgical specimens of PTC-CCV with corresponding preoperative cytology were identified over a 21-year period. The cytological features of the aspirated specimens, consisting mostly of Papanicolaou and Diff-Quick smears, were evaluated retrospectively. RESULTSAll cases demonstrated the presence of papillary structures. The most important features observed in PTC-CCV FNA specimens were hypercellularity with nuclear superposition and a paucity of nuclear pseudoinclusions and grooves. CONCLUSIONSAlthough PTC-CCV may demonstrate features that overlap with those of the classic variant of PTC, hypercellular smears with papillary structures covered by cells with pseudostratified nuclei that show a paucity of nuclear pseudoinclusions and grooves should alert the cytopathologist to the possibility of this diagnosis. Cancer Cytopathol 2017
  • No Thumbnail Available
    Item
    Cytologic grading of primary malignant salivary gland tumors: A blinded review by an international panel
    (WILEY, 2020-01-01) Johnson, Daniel N.; Onenerk, Mine; Krane, Jeffrey F.; Rossi, Esther Diana; Baloch, Zubair; Barkan, Guliz; Bongiovanni, Massimo; Callegari, Fabiano; Canberk, Sule; Dixon, Glen; Field, Andrew; Griffith, Christopher C.; Jhala, Nirag; Jiang, Sara; Kurtycz, Daniel; Layfield, Lester; Lin, Oscar; Maleki, Zahra; Perez-Machado, Miguel; Pusztaszeri, Marc; Vielh, Philippe; Wang, He; Zarka, Matthew A.; Faquin, William C.
    Background Fine needle aspiration (FNA) is commonly used for the preoperative evaluation of salivary gland tumors. Tumor grade is a key factor influencing clinical management of salivary gland carcinomas (SGCs). To assess the ability to grade nonbasaloid SGCs in FNA specimens, an international panel of cytopathologists convened to review and score SGC cases. Methods The study cohort included 61 cases of primary SGC from the pathology archives of 3 tertiary medical centers. Cases from 2005 to 2016 were selected, scanned, and digitized. Nineteen cytopathologists blinded to the histologic diagnosis reviewed the digitized cytology slides and graded them as low, high, or indeterminate. The panelists' results were then compared to the tumor grades based on histopathologic examination of the corresponding resection specimens. Results All but 2 of the 19 (89.5\%) expert panelists review more than 20 salivary gland FNAs per year