The accuracy of fine needle aspiration biopsy (FNAB) in the diagnosis of salivary tumors has been well established. This study was undertaken to determine the impact of FNAB on patient management. One hundred one patients underwent FNAB of major salivary gland masses. The physician's initial clinical impression was compared with the FNAB diagnosis and the final diagnosis in each case. Forty patients had solitary masses thought to be benign tumors other than Warthin's tumors. FNAB in 13 of these patients (33%) yielded a diagnosis permitting modification of the planned procedure. The diagnosis of Warthin's tumor was suspected clinically in 23 patients. In nine of these patients (39%), FNAB resulted in a different diagnosis. Of the 10 patients believed to have malignant tumors, using FNAB, 1 was found to have sialadenitis and 1 a lymphoma. Overall, FNAB resulted in a change in the clinical approach to 35% of the patients. We recommend the performance of FNAB in almost all patients with salivary masses.
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