Thyroid cytology: Difference between revisions
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==Risk stratification== | ==Risk stratification== | ||
[[File:Cytopathology of papillary thyroid carcinoma.png|thumb|380px|Papillary thyroid carcinoma, with typical features shown. Pap stain.]] | [[File:Cytopathology of papillary thyroid carcinoma.png|thumb|380px|'''Papillary thyroid carcinoma''', with typical features shown. Pap stain.]] | ||
Look at least for the following imaged features, and classify findings as per the Bethesda system: | Look at least for the following imaged features, and classify findings as per the Bethesda system: | ||
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<gallery mode=packed heights=220> | <gallery mode=packed heights=220> | ||
File:Relative incidences of histopathologic diagnoses of solitary thyroid nodules.png|Relative incidences of histopathologic diagnoses of solitary thyroid nodules that have undergone fine needle aspiration.<ref>Diagram by Mikael Häggström, MD. Source data: {{cite journal| author=Arul P, Masilamani S| title=A correlative study of solitary thyroid nodules using the bethesda system for reporting thyroid cytopathology. | journal=J Cancer Res Ther | year= 2015 | volume= 11 | issue= 3 | pages= 617-22 | pmid=26458591 | doi=10.4103/0973-1482.157302 | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=26458591 }}</ref> | |||
File:Cytology of benign follicular epithelial cells.jpg|Cytology of '''benign follicular''' epithelial cells (Bethesda category II), Pap stain, showing cells with significant nuclear pleomorphism but otherwise insignificant features. | File:Cytology of benign follicular epithelial cells.jpg|Cytology of '''benign follicular''' epithelial cells (Bethesda category II), Pap stain, showing cells with significant nuclear pleomorphism but otherwise insignificant features. | ||
File:Cytology of microfollicles.jpg|Look for '''microfollicles''', which are flat groups of follicular cells, each having less than 15 follicular cells arranged in a circle that is at least two thirds complete.<ref>{{cite web|url=https://www.pathologyoutlines.com/topic/thyroidfollicularneoplasm.html|title=Thyroid & parathyroid - Follicular neoplasm|author= Ayana Suzuki, C.T., Andrey Bychkov, M.D., Ph.D.}} Last author update: 21 April 2022. Last staff update: 12 May 2022</ref><ref group=image>{{cite journal|citle=An Analytical study of Fine Needle Aspiration Cytology in Various Thyroid Lesions and their Correlation with Histopathology|url=https://ijhcr.com/index.php/ijhcr/article/view/915%7Cauthor=Anjana Sharma Avishesh Singh , Ajay Sahu|year=2021|volume=4|issue=3}}<br>- "This is an Open Access article that uses a funding model which does not charge readers or their institutions for access and distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0)"</ref> They indicate a '''follicular neoplasm'''. | File:Cytology of microfollicles.jpg|Look for '''microfollicles''', which are flat groups of follicular cells, each having less than 15 follicular cells arranged in a circle that is at least two thirds complete.<ref>{{cite web|url=https://www.pathologyoutlines.com/topic/thyroidfollicularneoplasm.html|title=Thyroid & parathyroid - Follicular neoplasm|author= Ayana Suzuki, C.T., Andrey Bychkov, M.D., Ph.D.}} Last author update: 21 April 2022. Last staff update: 12 May 2022</ref><ref group=image>{{cite journal|citle=An Analytical study of Fine Needle Aspiration Cytology in Various Thyroid Lesions and their Correlation with Histopathology|url=https://ijhcr.com/index.php/ijhcr/article/view/915%7Cauthor=Anjana Sharma Avishesh Singh , Ajay Sahu|year=2021|volume=4|issue=3}}<br>- "This is an Open Access article that uses a funding model which does not charge readers or their institutions for access and distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0)"</ref> They indicate a '''follicular neoplasm'''. | ||