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Difference between revisions of "Head and neck cytopathology"
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*Squamous carcinoma. | *Squamous carcinoma. | ||
*Mucoepidermoid carcinoma. | *Mucoepidermoid carcinoma. | ||
==Crystal in salivary gland specimens== | |||
===General=== | |||
*Uncommon.<ref name=pmid33296146>{{cite journal |authors=Sun T, Faquin WC, Torous VF |title=Crystalloids in FNA specimens of salivary gland lesions: A retrospective study in a single large institute |journal=Cancer Cytopathol |volume=129 |issue=6 |pages=432–438 |date=June 2021 |pmid=33296146 |doi=10.1002/cncy.22395 |url=}}</ref> | |||
DDx: | |||
*Amylase crystalloids ~ 75%. | |||
*Tyrosine crystalloids ~ 11%. | |||
*Collagenous crystalloids ~ 3%. | |||
*Undetermined type ~ 11%. | |||
===Cytology=== | |||
Features:<ref name=pmid33296146/><ref>{{cite journal |authors=Kishore M, Kaushal M, Dogra S |title=Crystalloids in salivary gland lesion: A diagnostic clue |journal=J Lab Physicians |volume=11 |issue=1 |pages=100–101 |date=2019 |pmid=30983813 |pmc=6437830 |doi=10.4103/JLP.JLP_120_18 |url=}}</ref> | |||
*Amylase crystalloids: rhomboid (or polygonal) +/- "pointy" ends, nonbirefringent. | |||
*Tyrosine crystalloids: floret-like structures, refractile. | |||
*Collagenous crystalloids: needle-shaped, radially arranged. | |||
==Pleomorphic adenoma== | ==Pleomorphic adenoma== | ||