Relevance of rosette patterns in variants of papillary thyroid carcinoma
dc.contributor.author | Dell’Aquila, Marco | |
dc.contributor.author | Musarra, Teresa | |
dc.contributor.author | Fiorentino, Vincenzo | |
dc.contributor.author | Brunelli, Chiara | |
dc.contributor.author | De Marco, Costanza | |
dc.contributor.author | Raffaelli, Marco | |
dc.contributor.author | Traini, Emanuela | |
dc.contributor.author | Pio Lombardi, Celestino | |
dc.contributor.author | Fadda, Guido | |
dc.contributor.author | Larocca, Luigi Maria | |
dc.contributor.author | Pantanowitz, Liron | |
dc.contributor.author | Rossi, Esther Diana | |
dc.date.accessioned | 2020-11-04T15:58:08Z | |
dc.date.available | WITHHELD_13_MONTHS | |
dc.date.available | 2020-11-04T15:58:08Z | |
dc.date.issued | 2020-11 | |
dc.identifier.citation | Dell’Aquila, Marco; Musarra, Teresa; Fiorentino, Vincenzo; Brunelli, Chiara; De Marco, Costanza; Raffaelli, Marco; Traini, Emanuela; Pio Lombardi, Celestino; Fadda, Guido; Larocca, Luigi Maria; Pantanowitz, Liron; Rossi, Esther Diana (2020). "Relevance of rosette patterns in variants of papillary thyroid carcinoma." Cytopathology 31(6): 533-540. | |
dc.identifier.issn | 0956-5507 | |
dc.identifier.issn | 1365-2303 | |
dc.identifier.uri | https://hdl.handle.net/2027.42/163372 | |
dc.description.abstract | IntroductionThe detection of rosette‐like clusters (RLC) of follicular cells in thyroid carcinoma has been reported mostly in the columnar cell variant of papillary thyroid carcinoma (PTC). Despite the fact that diagnosing variants of PTC is no longer encouraged by The Bethesda System for Reporting Thyroid Cytopathology, the identification of cytomorphological features such as RLC linked with these tumours might help reduce possible misinterpretation in thyroid fine needle aspiration (FNA) cytology. We accordingly investigated the potential correlation of architectural patterns including RLC with PTC variants.MethodsWe analysed 225 thyroid FNA cytology cases diagnosed as suspicious for malignancy (SFM) and positive for malignancy (M) over a 1‐year time where all samples had corresponding histology. We also included 150 benign lesions from the same period. The presence of RLC vs similar appearing solid clusters, papillary structures and microfollicles were evaluated. We also performed immunocytochemistry and molecular testing for BRAFV600E.ResultsWe included 100 (44.4%) SFM favouring PTC and 125 (55.6%) M cases with cyto‐histological correlation. On histology, all SFM and M cases showed malignancy including 140 (62.2%) classic PTC and 85 (37.8%) PTC variants. The cytomorphological patterns in all FNA samples included solid (74%), papillary (89%), microfollicular (70%), and pseudo‐RLC morphology (25.7%). We identified only pseudo‐RLC in 33 FNA specimens from PTC variant cases that included tall cell variant (42.4%), hobnail variant (21.2%) and miscellaneous variants (36.3%) of PTC. No definitive RLC were detected in our series. Immunocytochemistry and BRAFV600E were not specifically linked with an RLC pattern.ConclusionsThese findings demonstrate that in our dataset the architectural pattern of RLC was not recognised within PTC variants. However, we did identify a pseudo‐RLC pattern that was observed in association with tall cell variant and hobnail variant cases of PTC.The findings discussed in the present study demonstrate that certain architectural patterns such as rosette‐like clusters (RLC) may be recognized more frequently in specific PTC variants that may be helpful in reducing their misinterpretation. In the series presented, RLCs were observed mostly in association with tall cell and hobnail variants of PTC. | |
dc.publisher | Wiley Periodicals, Inc. | |
dc.publisher | IARC | |
dc.subject.other | thyroid malignancy | |
dc.subject.other | rosette pattern | |
dc.subject.other | PTC variant | |
dc.subject.other | papillary pattern | |
dc.subject.other | microfollicular pattern | |
dc.subject.other | thyroid | |
dc.title | Relevance of rosette patterns in variants of papillary thyroid carcinoma | |
dc.type | Article | |
dc.rights.robots | IndexNoFollow | |
dc.subject.hlbsecondlevel | Oncology and Hematology | |
dc.subject.hlbtoplevel | Health Sciences | |
dc.description.peerreviewed | Peer Reviewed | |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/163372/2/cyt12885_am.pdf | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/163372/1/cyt12885.pdf | en_US |
dc.identifier.doi | 10.1111/cyt.12885 | |
dc.identifier.source | Cytopathology | |
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dc.owningcollname | Interdisciplinary and Peer-Reviewed |
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