Risk stratification of parotid neoplasms based on intraoperative frozen section and preoperative fine needle aspiration cytology

xlomafota13 shared this article with you from Inoreader Risk stratification of parotid neoplasms based on intraoperative frozen section and preoperative fine needle aspiration cytology Via http://link.springer.com/journal/405,European archives of oto-rhino-laryngology,The European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino Eur Arch Otorhinolaryngol. 2021 Aug 3. doi: 10.1007/s00405-021-07015-w. Online ahead of print. ABSTRACT PURPOSE: This study aims to determine the relationship of frozen section (FS) to final histology and determine how incorporating FS may change preoperative malignancy risk estimates based on preoperative fine needle aspiration cytology (FNAC). The secondary aim is to determine if FS is useful in influencing intraoperative decision-making. METHODS: Retrospective review of 426 intraoperative FS for parotidectomies performed for primary parotid lesions. RESULTS: Risk of malignancy with a benign FS was 2.5%, with indeterminate 36.1%, and with malignant 100%. Incorporating FS to fine needle aspiration for cytology helped to stratify malignancy risk especially in the Milan categories of atypia of undetermined significance, neoplasm of uncertain malignant potential and non-diagnostic categories, where a malignant FS increased ma lignancy risk significantly. FS was only able to identify 11% of high-risk histological subtypes for which a neck dissection would be recommended. CONCLUSIONS: FS may be used to stratify malignancy risk intraoperatively but has limited utility in clinical decision-making to perform a neck dissection and more extensive parotid resection in high-risk histological subtypes. PMID:34342679 | DOI:10.1007/s00405-021-07015-w View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.