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CC BY-NC-ND 4.0 · Int Arch Otorhinolaryngol 2021; 25(03): e379-e382
DOI: 10.1055/s-0040-1715148
Original Research

The Role of FNAC in the Diagnosis and Management of Warthin Tumour: Analysis of 74 Cases

Mohamed Zahran 
1   Alexandria Medical School, Alexandria, Egypt
,
Sundus Alsedra
1   Alexandria Medical School, Alexandria, Egypt
,
Daron Cope
2   Department of Otolaryngology-Head and Neck Surgery, NSW Health, North Sydney, New South Wales, Australia
,
Ahmed Youssef
1   Alexandria Medical School, Alexandria, Egypt
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Abstract

Introduction After pleomorphic adenoma, Warthin tumor gets its popularity as the second most common benign neoplasm of the parotid gland. Fine-needle aspiration cytology (FNAC) is the most cost-effective and minimally-invasive way to determine the histological character of a parotid gland tumor.

Objective To determine the accuracy of FNAC in the diagnosis of Warthin Tumour.

Methods A retrospective study conducted between 2014 and 2018. Out of 243 FNACs performed for parotid lesions, a histopathological correlation was established in 74 cases to reveal the accuracy of FNAC in the diagnosis of Warthin tumor.

Results A total of 243 FNACs of parotid lesions were performed, and a histopathological correlation was established in 74 (30.4%) cases. Later on, we confirmed that 16 (21.6%) out of these 74 patients had cases of Warthin tumor. In total, 15 (20.3%) out of those 74 cases were confirmed as Warthin tumors on the initial cytology, which revealed a true positive concordance between the cytology and the final histological diagnosis; 55/74 (74%) were true negative results; on the other hand, 1/74 (1.4%) was a false negative, and 3/74 (4.1%) were false positive results. The sensitivity of the FNAC in the diagnosis of Warthin tumor was of 93%, while the specificity was of 94.8%, and the accuracy, of 94.6%.

Conclusion In the present study, FNAC had a high diagnostic accuracy, reaching 94%.

Keywords

warthin tumor - papillary cystadenoma lymphomatosum - cytology - pathology


Publication History

Received: 11 May 2020

Accepted: 21 June 2020

Article published online:
24 September 2020

© 2020. Fundação Otorrinolaringologia. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commecial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)

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