Abstract
We evaluated the accuracy and usefulness of fine-needle aspiration cytologic evaluation of intraparotid masses in 64 patients who underwent subsequent surgery. Adequate specimens for cytologic evaluation were obtained in 46 of the 64 patients (72 percent). Thirty-three lesions in this group (72 percent) were benign and 13 (28 percent) were malignant. There was agreement of cytologic with final histologic diagnosis with regard to distinction of malignant from benign lesions in 43 of the 46 cases (93 percent). Eleven of 13 malignant tumors (sensitivity 85 percent) and 32 of 33 benign lesions (specificity 97 percent) were predicted. Exact tissue diagnosis was correctly determined in 34 of the 46 tumors (74 percent). There were no instances of hematoma, infection, facial nerve injury, implantation of tumor, or other complications as a result of 71 aspirations performed in 64 patients. Information gained by fine-needle aspiration was often valuable in assessing the suitability and extent of surgical treatment.
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