Clinical trial · Observational
Atypia of Undetermined Significance (AUS) / Follicular Lesion of Undetermined Significance (FLUS)
Understanding Management and Clinical Follow-up of Atypia of Undetermined Significance / Follicular Lesion of Undetermined Significance Category in Thyroid Fine Needle Aspiration: A 6 Year-retrospective Study in a Tertiary Care Center.
- Source
- ClinicalTrials.gov
- Retrieved
- Sep 8, 2026
- Layer
- normalized (units and labels harmonized; values unchanged)
- Run
- ING-CLINICALTRIALS-20260908-000001
Why stopped (as posted): No participants enrolled
Summary
Brief summary (as posted)
According to the guidelines for reporting thyroid fine needle aspirations known as The Bethesda System, the category of atypical cells known as AUS/ FLUS category has an estimated rate of 5 to 15% for malignancy. This study aims to determine the rate of malignancy of this category in our institution and to evaluate the clinical outcome of the participants.
Conditions
Conditions (1)
Free-text conditions as registered, with the CancerIndex entity they were reconciled to and the match type.
| Condition (as posted) | Mapped entity | Match | Confidence |
|---|---|---|---|
| Diagnoses Disease | — | UNRESOLVED | — |
Interventions
Interventions (1)
| Intervention | Type | Mapped drug | Match |
|---|---|---|---|
| Determination of risk of malignancy of these thyroid lesions | Behavioral | — | UNRESOLVED |
Design
Arms and outcomes
Arms (0)
[]Primary outcomes (1)
- measure
- Number of malignant cases in a subsequent thyroidectomy after a diagnosis of AUS/ FLUS
- timeFrame
- From April 1st/ 2010 to December 31st 2016
- description
- All the cytology cases with a diagnosis of AUS/FLUS on fine needle aspiration from April 1st 2010 to December 31st 2016 will be retrieved using the University Medical Center's pathology information system (Copath). Follow-up of these cases will be done looking for percentage of malignancy in these cases.
Eligibility
Eligibility (as posted)
- Sex
- All
Show eligibility criteria text
Inclusion Criteria: * Thyroid fine needle aspirations interpreted as AUS/ FLUS at University of Mississippi Medical Center from April 2010 to December 2016. Exclusion Criteria: * Fine needle aspirations of thyroid with diagnosis of unsatisfactory, benign, suspicious for follicular neoplasm/ Follicular neoplasm, suspicious for malignancy and malignant.
References
Publications (9)
- RESULTJo VY, Stelow EB, Dustin SM, Hanley KZ. Malignancy risk for fine-needle aspiration of thyroid lesions according to the Bethesda System for Reporting Thyroid Cytopathology. Am J Clin Pathol. 2010 Sep;134(3):450-6. doi: 10.1309/AJCP5N4MTHPAFXFB. PMID 20716802
- RESULTBaloch ZW, Cibas ES, Clark DP, Layfield LJ, Ljung BM, Pitman MB, Abati A. The National Cancer Institute Thyroid fine needle aspiration state of the science conference: a summation. Cytojournal. 2008 Apr 7;5:6. doi: 10.1186/1742-6413-5-6. No abstract available. PMID 18394201
- RESULTCibas ES, Ali SZ. The Bethesda System for Reporting Thyroid Cytopathology. Thyroid. 2009 Nov;19(11):1159-65. doi: 10.1089/thy.2009.0274. PMID 19888858
- RESULTMarchevsky AM, Walts AE, Bose S, Gupta R, Fan X, Frishberg D, Scharre K, Zhai J. Evidence-based evaluation of the risks of malignancy predicted by thyroid fine-needle aspiration biopsies. Diagn Cytopathol. 2010 Apr;38(4):252-9. doi: 10.1002/dc.21185. PMID 19813257
- RESULTRenshaw A. An estimate of risk of malignancy for a benign diagnosis in thyroid fine-needle aspirates. Cancer Cytopathol. 2010 Aug 25;118(4):190-5. doi: 10.1002/cncy.20092. PMID 20586117
- RESULTHo AS, Sarti EE, Jain KS, Wang H, Nixon IJ, Shaha AR, Shah JP, Kraus DH, Ghossein R, Fish SA, Wong RJ, Lin O, Morris LG. Malignancy rate in thyroid nodules classified as Bethesda category III (AUS/FLUS). Thyroid. 2014 May;24(5):832-9. doi: 10.1089/thy.2013.0317. Epub 2014 Mar 10. PMID 24341462
- RESULTKim TH, Jeong DJ, Hahn SY, Shin JH, Oh YL, Ki CS, Kim JW, Jang JY, Cho YY, Chung JH, Kim SW. Triage of patients with AUS/FLUS on thyroid cytopathology: effectiveness of the multimodal diagnostic techniques. Cancer Med. 2016 May;5(5):769-77. doi: 10.1002/cam4.636. Epub 2016 Jan 18.