Fine‐needle aspiration of six carotid body paragangliomas

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Abstract
We report six carotid body paragangliomas diagnosed by fine‐needle aspiration (FNA) in five patients. A total of eight aspirations were performed. The cytologic findings are characteristic: hemorrhagic background, hypo‐ to hypercellular smears (depending on the skill of the aspirator) with cells having delicate, illdefined, vacuolated cytoplasm, pleomorphic nuclei with distinct nucleoli, rare intranuclear cytoplasmic inclusions, and prominent rosette formation. No complications arose in any of the eight aspirations. FNA is a safe, accurate means of diagnosing carotid body paragangliomas. It can provide essential information for treatment planning and patient management.