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. 2007 Mar;136(3):411-4.
doi: 10.1016/j.otohns.2006.10.006.

The role of pre-operative CT-guided FNAB for parapharyngeal space tumors

Tarik Y Farrag  1 , Frank R Lin, Wayne M Koch, Joseph A Califano, Charles W Cummings, Maryam A Farinola, Ralph P Tufano
Affiliations

The role of pre-operative CT-guided FNAB for parapharyngeal space tumors

Tarik Y Farrag et al. Otolaryngol Head Neck Surg. 2007 Mar.

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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