Cystic masses of the lateral neck: Diagnostic value comparison between fine-needle aspiration, core-needle biopsy, and frozen section.

Given its adequate PPV (92%), FNA should be used initially on LCNM. Because of its high sensitivity, CNB should be considered if FNA is not diagnostic of malignancy. FS should always follow a CNB indicative of malignancy, because of low NPV. A diagnosis of malignancy on FNA, CNB, or FS strongly indicates presence of malignancy.