Correlation between fine needle aspiration biopsy and histopatological findings in the diagnosis of parotid tumors

Abstract

AimWe aimed to compare the preoperative fine needle aspiration biopsy (FNAB) and postoperative histopathology findings in parotid masses and to determine the diagnostic sensitivity, specificity, and accuracy of FNAB.MethodPreoperative FNAB and postoperative histopathol-ogy findings of 133 patients who had been operated for parotid masses between 2010-2015 were included. The specificity and sensitivity values of fine-needle aspiration biopsy as a diagnostic test were calculated.Results105 of the patients (78.9%) were male and 28 (21.1%) were female with a mean age of 48.6 (22-77). FNAB was benign for 120 patients (90.2%) and malign for 9 patients (6.8%). FNAB was nondiagnostic in 4 (3%) of the 133 patients. 119 of the patients (92.2%) were reported as benign and 10 of the patients (7.8%) were reported as malign at postoperative histopathological examination. The sensitivity, specificity, positive predictive, negative predic-tive, and overall accuracy rates were 80%, 99.1%, 88.8%, 98.3% and 97.6%, respectively.ConclusionFNAB is a reliable method of preoperatively assess-ing parotid tumors.

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