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  • Title: The role of pre-operative CT-guided FNAB for parapharyngeal space tumors.
    Author: Farrag TY, Lin FR, Koch WM, Califano JA, Cummings CW, Farinola MA, Tufano RP.
    Journal: Otolaryngol Head Neck Surg; 2007 Mar; 136(3):411-4. PubMed ID: 17321869.
    Abstract:
    OBJECTIVE: To determine the role of computed tomography (CT)-guided fine needle aspiration biopsy (FNAB) in surgical planning for parapharyngeal space (PPS) tumors. DESIGN AND SETTING: Chart review of 49 consecutive patients with surgically treated PPS tumors from 1995 to 2005. RESULTS: Twenty-nine patients had CT-guided FNAB. A cytopathologic diagnosis that was the same as final pathology was rendered in 14 (48%) patients; suggestive but not conclusive in 6 (21%) patients; discordant in 3 (10%) patients; and 6 (21%) patients had a nondiagnostic result. Fourteen of 15 patients who had a final histopathologic finding of pleomorphic adenoma had a correct or highly suggestive preoperative FNAB diagnosis. The positive predictive value for CT-guided FNAB to identify benign tumors is 90%, (18 of 20) but to identify malignant PPS tumors is 75% (3 of 4). CONCLUSION: CT-guided FNAB of PPS tumors is helpful to predict the nature of the PPS tumors (especially benign), which allows the surgeon and patient to plan for treatment, accordingly.
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