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  • Title: Fine-needle aspiration biopsy of salivary gland lesions in a selected patient population.
    Author: Cohen EG, Patel SG, Lin O, Boyle JO, Kraus DH, Singh B, Wong RJ, Shah JP, Shaha AR.
    Journal: Arch Otolaryngol Head Neck Surg; 2004 Jun; 130(6):773-8. PubMed ID: 15210562.
    Abstract:
    OBJECTIVE: To report the role of selective use of preoperative fine-needle aspiration biopsy (FNAB) in patients with major salivary gland lesions at a tertiary care cancer center. DESIGN: Retrospective review of FNAB results compared with final histologic diagnosis as the criterion standard. SETTING: An academic tertiary care cancer center. PATIENTS: A consecutive series of 258 patients who underwent FNAB of major salivary gland lesions between 1996 and 2000, of whom 169 had surgical resection. MAIN OUTCOME MEASURES: Predictive value, sensitivity, specificity, and accuracy. RESULTS: FNAB was performed in 169 (37%) of 463 salivary gland lesions undergoing surgical procedures. A total of 126 lesions were in the parotid gland and 44 in the submandibular gland. Seventy-nine lesions (46%) were malignant. There were 150 FNAB specimens (89%) that were satisfactory for evaluation. The FNAB diagnosis of malignant or suspicious lesion had positive and negative predictive values of 84% and 77%, respectively. Ten of 20 false-negative FNAB results were low-grade lymphoma on final histologic assessment. Fine-needle aspiration biopsy diagnosis of a benign neoplasm had positive and negative predictive values of 83% and 88%, respectively. A cytopathologic diagnosis of a nonneoplastic lesion was predictive in only 47% of cases. Fifteen (47%) of 32 lymphocyte-predominant FNAB specimens were lymphoma on final histologic assessment. Ten (20%) of 49 patients with history of a solid, non-head and neck malignancy had evidence of distant metastasis to the salivary gland by histologic and/or cytopathologic assessment. CONCLUSIONS: An FNAB diagnosis of malignant or neoplastic major salivary gland disease is generally predictive of final histologic diagnosis. The predictive value of a negative FNAB finding is low, and should not supersede clinical suspicion. Cytologic findings of a lymphocyte-predominant lesion should prompt further workup to rule out lymphoma.
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