Thyroid paraganglioma: A diagnostic pitfall in thyroid FNA.
Swati P SatturwarEsther Diana RossiZahra MalekiRichard L CantleyWilliam C Faquin Md PhDLiron PantanowitzPublished in: Cancer cytopathology (2020)
All thyroid paragangliomas were misdiagnosed on FNA as follicular neoplasms, in part because of the rarity of these tumors in this location and cytomorphology mimicking follicles. The absence of colloid, the presence of naked nuclei, focal marked anisonucleosis, and the presence of sustentacular cells are important cytology clues.