1
|
Aydın Kasap Z, Kurt B, Özsağır E, Ercin ME, Güner A. Respond to "Comments on 'Diagnostic models for predicting malignancy in thyroid nodules classified as Bethesda category III in an endemic region'". Diagn Cytopathol 2024; 52:290-291. [PMID: 38504597 DOI: 10.1002/dc.25303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Accepted: 03/05/2024] [Indexed: 03/21/2024]
Affiliation(s)
- Zeliha Aydın Kasap
- Faculty of Medicine, Department of Biostatistics and Medical Informatics, Karadeniz Technical University, Trabzon, Turkey
| | - Burçin Kurt
- Faculty of Medicine, Department of Biostatistics and Medical Informatics, Karadeniz Technical University, Trabzon, Turkey
| | - Elif Özsağır
- Bingöl Provincial Health Directorate, Department of Pathology, Bingöl State Hospital, Bingöl, Turkey
| | - Mustafa Emre Ercin
- T.R. Ministry of Health Ankara Atatürk Sanatorium Training and Research Hospital, Department of Pathology, Ankara, Turkey
| | - Ali Güner
- Faculty of Medicine, Department of General Surgery, Karadeniz Technical University, Trabzon, Turkey
| |
Collapse
|
2
|
Kasap ZA, Kurt B, Özsağır E, Ercin ME, Güner A. Diagnostic models for predicting malignancy in thyroid nodules classified as Bethesda Category III in an endemic region. Diagn Cytopathol 2024; 52:200-210. [PMID: 38269646 DOI: 10.1002/dc.25270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 12/19/2023] [Accepted: 01/03/2024] [Indexed: 01/26/2024]
Abstract
BACKGROUND This study aims to develop a diagnostic model to help physicians determine whether thyroid nodules categorized as atypia of undetermined significance (AUS) in category III of the Bethesda system are benign or malignant preoperatively. To create a diagnostic model for predicting thyroid nodules' benign or malignant with AUS cytology based on clinical, ultrasonographic, and cytopathological findings. METHODS This is a retrospective cohort study involving patients (>19) at risk of thyroid cancer who had thyroidectomy after an AUS cytology. The dataset consists of 53 variables 204 nodules from 183 patients. Binary logistic regression and factor analysis methods were used to identify risk factors for malignancy. Finally, four prediction models were developed using different approaches, based on clinical, pathological clinical + pathological, and the factors. RESULTS A total of 88 (48.1%) of 183 patients diagnosed with AUS were benign and 95 (51.9%) the malignant. After determining risk factors, four prediction models were developed based on different approaches to assist physicians in deciding to detect AUS nodules early. It was seen that bilaterality was found to be a risk factor for malignancy in the clinical model (pbilaterality = .03) and it was also seen that the pathological variables pale chromatin and irregular contours in the oncocyte variables were risk factors for malignancy (ppalechromatin = .02, pirregularcontoursintheoncocyte = .04). The best model obtained sensitivity and specificity values are 73% and 87% based on clinical and pathological variables. CONCLUSION This comprehensive study may provide a more in-depth understanding of AUS and make a notable contribution to healthcare professionals before surgery.
Collapse
Affiliation(s)
- Zeliha Aydın Kasap
- Department of Biostatistics and Medical Informatics, Faculty of Medicine, Karadeniz Technical University, Trabzon, Turkey
| | - Burçin Kurt
- Department of Biostatistics and Medical Informatics, Faculty of Medicine, Karadeniz Technical University, Trabzon, Turkey
| | - Elif Özsağır
- Bingöl Provincial Health Directorate, State Hospital, Bingöl, Turkey
| | - Mustafa Emre Ercin
- T.R. Ministry of Health Ankara Atatürk Sanatorium Education and Research Hospital, Ankara, Turkey
| | - Ali Güner
- Department of General Surgery, Faculty of Medicine, Karadeniz Technical University, Trabzon, Turkey
| |
Collapse
|
3
|
Al-Hakami HA, Altayyeb JF, Alsharif SM, Alshareef MA, Awad BI, Al-Garni M. Preoperative Thyroid-Stimulating Hormone Levels and Risk of Thyroid Cancer in Post-thyroidectomy Patients for Thyroid Nodules: A Study From a Tertiary Hospital in Western Saudi Arabia. Cureus 2023; 15:e47622. [PMID: 38022328 PMCID: PMC10667624 DOI: 10.7759/cureus.47622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/25/2023] [Indexed: 12/01/2023] Open
Abstract
Background Although serum thyroid-stimulating hormone (TSH) is one of the basic investigations to assess thyroid nodules, its role in thyroid oncogenesis remains unclear. Previous literature has conflicting findings regarding TSH levels and the prediction of malignancy. This study aims to investigate the association between TSH levels and the risk of malignancy and advanced staging in patients who underwent thyroidectomy for nodular thyroid disease. Additionally, it aims to assess if higher TSH correlates with malignancy in Bethesda staging III, IV, and V. Methodology This retrospective cohort study was conducted among participants who underwent near-total/total thyroidectomy or hemithyroidectomy at King Abdulaziz Medical City between 2016 and 2021. Results A total of 378 cases were included, and 50.3% of the cases had malignant nodules in the surgical histopathology findings. The median TSH levels were higher in malignant nodules compared to benign ones (1.64 mIU/L versus 1.49 mIU/L; p < 0.001). Additionally, higher TSH levels were not associated with advanced staging or malignancy in patients with Bethesda stage III-V. Conclusions Higher TSH levels are associated with an increased risk of malignancy in patients with nodular thyroid disease. Using TSH levels as an adjunctive tool for identifying high-risk patients with thyroid nodules would aid in management planning.
Collapse
Affiliation(s)
- Hadi Afandi Al-Hakami
- Otolaryngology - Head and Neck Surgery, King Saud Bin Abdulaziz University for Health Sciences, King Abdullah International Medical Research Center, Ministry of the National Guard Health Affairs, Jeddah, SAU
| | - Jamelah F Altayyeb
- College of Medicine, King Saud Bin Abdulaziz University for Health Sciences, Jeddah, SAU
| | - Salwan M Alsharif
- College of Medicine, King Saud Bin Abdulaziz University for Health Sciences, Jeddah, SAU
| | - Mohammad A Alshareef
- Otolaryngology - Head and Neck Surgery, King Saud Bin Abdulaziz University for Health Sciences, King Abdullah International Medical Research Center, Ministry of National Guard Health Affairs, Jeddah, SAU
| | - Baraa I Awad
- Otolaryngology - Head and Neck Surgery, King Saud Bin Abdulaziz University for Health Sciences, King Abdullah International Medical Research Center, Ministry of the National Guard Health Affairs, Jeddah, SAU
| | - Mohammed Al-Garni
- Otolaryngology - Head and Neck Surgery, King Saud Bin Abdulaziz University for Health Sciences, King Abdullah International Medical Research Center, Ministry of the National Guard Health Affairs, Jeddah, SAU
| |
Collapse
|
4
|
Antonia TD, Maria LI, Ancuta-Augustina GG. Preoperative evaluation of thyroid nodules - Diagnosis and management strategies. Pathol Res Pract 2023; 246:154516. [PMID: 37196471 DOI: 10.1016/j.prp.2023.154516] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Accepted: 05/06/2023] [Indexed: 05/19/2023]
Abstract
Thyroid cancer is the most common endocrine malignancy, with increasing incidence over the past few decades. Fine needle aspiration (FNA) biopsy is the gold standard for preoperative diagnosis of thyroid malignancies. Nevertheless, this method renders indeterminate results in up to 30% of the cases. Therefore, these patients are often referred to unnecessary surgery to establish the diagnosis. To improve the accuracy of preoperative diagnosis, several other ways, such as ultrasonography, elastography, immunohistochemical analysis, genetic testing, and core needle biopsy, have been developed and can be used either in association with or as an alternative to FNA. This review aims to evaluate all these diagnostic tools to determine the most appropriate way of managing thyroid nodules and subsequently improve the selection of cases referred to surgery.
Collapse
Affiliation(s)
- Tapoi Dana Antonia
- Carol Davila University of Medicine and Pharmacy, Department of Pathology, Bucharest, Romania; University Emergency Hospital, Department of Pathology, Bucharest, Romania
| | - Lambrescu Ioana Maria
- Carol Davila University of Medicine and Pharmacy, Department of Cellular and Molecular Biology and Histology, Bucharest, Romania; Victor Babes National Institute of Pathology, Bucharest, Romania.
| | - Gheorghisan-Galateanu Ancuta-Augustina
- Carol Davila University of Medicine and Pharmacy, Department of Cellular and Molecular Biology and Histology, Bucharest, Romania; CI Parhon National Institute of Endocrinology, Bucharest, Romania
| |
Collapse
|
5
|
Remer LF, Linhares SM, Scola WH, Lew JI. Chronic Lymphocytic Thyroiditis May Limit the Utility of Molecular Testing in AUS/FLUS Thyroid Nodules. J Surg Res 2023; 289:229-233. [PMID: 37148856 DOI: 10.1016/j.jss.2023.03.034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Revised: 03/23/2023] [Accepted: 03/25/2023] [Indexed: 05/08/2023]
Abstract
INTRODUCTION Chronic lymphocytic thyroiditis (CLT) may increase the likelihood of atypia of undetermined significance/follicular lesion of undetermined significance (AUS/FLUS) results in thyroid nodules by fine needle aspiration (FNA). Gene expression classifier (GEC) and Thyroid Sequencing (ThyroSeq) may better stratify rate of malignancy (ROM) of AUS/FLUS thyroid nodules. This study compares the utility of molecular tests in determining malignancy in surgical patients with concomitant AUS/FLUS thyroid nodules and CLT. METHODS A retrospective review of 1648 patients with index thyroid nodules who underwent FNA and thyroidectomy at a single institution was performed. Patients with concomitant AUS/FLUS thyroid nodules and CLT were subdivided into three diagnostic groups: FNA only, FNA with GEC, and FNA with ThyroSeq. Patients with AUS/FLUS thyroid nodules without CLT were subdivided into similar groups. Final histopathology of the cohorts was further stratified into benignity and malignancy and analyzed using Chi-squared statistics. RESULTS Of 463 study patients, 86 had concomitant AUS/FLUS thyroid nodules and CLT with a 52% ROM, and the difference of ROM among FNA only (48%), suspicious GEC (50%), or positive ThyroSeq (69%) was not significant. In 377 patients with AUS/FLUS thyroid nodules without CL, ROM was 59%. ROM among these patients was significantly higher when molecular testing was used (FNA only 51%, suspicious GEC 65%, and positive ThyroSeq 68%; P < 0.05). CONCLUSIONS Molecular tests may have limited value in predicting malignancy in surgical patients with concomitant AUS/FLUS thyroid nodules and CLT.
Collapse
Affiliation(s)
- Lindsay F Remer
- Division of Endocrine Surgery, DeWitt Daughtry Department of Surgery, University of Miami Leonard M. Miller School of Medicine, Miami, Florida.
| | - Samantha M Linhares
- Division of Endocrine Surgery, DeWitt Daughtry Department of Surgery, University of Miami Leonard M. Miller School of Medicine, Miami, Florida
| | - William H Scola
- Division of Endocrine Surgery, DeWitt Daughtry Department of Surgery, University of Miami Leonard M. Miller School of Medicine, Miami, Florida
| | - John I Lew
- Division of Endocrine Surgery, DeWitt Daughtry Department of Surgery, University of Miami Leonard M. Miller School of Medicine, Miami, Florida
| |
Collapse
|
6
|
Amado A, Castro B, Torre AP, Graça S, Tavares A, Póvoa A, Soares C, Gonçalves G. Serum TSH as a predictor of malignancy in indeterminate thyroid nodules. Ann R Coll Surg Engl 2021; 104:380-384. [PMID: 34939834 DOI: 10.1308/rcsann.2021.0196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
INTRODUCTION Thyroid nodules are lesions that are radiologically distinct from the thyroid parenchyma. Cervical ultrasound diagnoses 19-67% of nodules and is crucial in identifying those that lack cytological characterisation. Approximately 25% of biopsies reveal an indeterminate cytological result (Bethesda III), in which the risk of malignancy is variable (5-15%). The clinical importance of the diagnostic strategy used for thyroid nodules results from the need to exclude malignancy. The aim of this study was to evaluate the usefulness of serum thyroid-stimulating hormone (TSH) levels as a predictor of malignancy in cytologically indeterminate thyroid nodules. METHODS Our retrospective study included 40 patients with cytologically indeterminate thyroid nodules seen in our hospital between January 2013 and December 2017. Clinical parameters were reviewed, including age, gender, serum TSH levels, family history of thyroid carcinoma, radiation exposure and some sonographic features of the nodules. Statistical analysis was performed using SPSS. Statistical significance was defined as p<0.05. RESULTS Female gender was predominant (85%) and the mean (SD) age was 53.3 (15) years. Thyroid carcinoma was confirmed in 28% of patients. Median TSH levels were higher in patients with malignant (2.73µIU/ml) compared with benign (1.56µIU/ml) nodules (p<0.05). We demonstrated an increased risk of malignancy in patients with TSH levels of 2.68µIU/ml or above (p<0.05). CONCLUSION Higher serum TSH levels are associated with an increased risk of thyroid carcinoma in cytologically indeterminate nodules. TSH can become a fundamental diagnostic tool in stratifying the risk of malignancy and assist in diagnostic and therapeutic approaches to these nodules.
Collapse
Affiliation(s)
- A Amado
- Vila Nova de Gaia/Espinho Hospital Center (CHVNG/E), Vila Nova de Gaia, Portugal
| | - B Castro
- Vila Nova de Gaia/Espinho Hospital Center (CHVNG/E), Vila Nova de Gaia, Portugal
| | - A P Torre
- Vila Nova de Gaia/Espinho Hospital Center (CHVNG/E), Vila Nova de Gaia, Portugal
| | - S Graça
- Vila Nova de Gaia/Espinho Hospital Center (CHVNG/E), Vila Nova de Gaia, Portugal
| | - A Tavares
- Vila Nova de Gaia/Espinho Hospital Center (CHVNG/E), Vila Nova de Gaia, Portugal
| | - A Póvoa
- Vila Nova de Gaia/Espinho Hospital Center (CHVNG/E), Vila Nova de Gaia, Portugal
| | - C Soares
- Vila Nova de Gaia/Espinho Hospital Center (CHVNG/E), Vila Nova de Gaia, Portugal
| | - G Gonçalves
- Vila Nova de Gaia/Espinho Hospital Center (CHVNG/E), Vila Nova de Gaia, Portugal
| |
Collapse
|
7
|
Cho YY, Chung YJ, Kim HS. Malignancy Rate of Bethesda Class III Thyroid Nodules Based on the Presence of Chronic Lymphocytic Thyroiditis in Surgical Patients. Front Endocrinol (Lausanne) 2021; 12:745395. [PMID: 34659127 PMCID: PMC8515134 DOI: 10.3389/fendo.2021.745395] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Accepted: 09/13/2021] [Indexed: 01/21/2023] Open
Abstract
BACKGROUND Hashimoto's thyroiditis (HT), also known as chronic lymphocytic thyroiditis (CLT), may interfere with the accurate cytological diagnosis of thyroid nodules. Recently, HT has been considered a premalignant condition for thyroid cancer development. The diagnosis of atypia of undetermined significance/follicular lesions of undetermined significance (AUS/FLUS) thyroid nodules is challenging and evidence for the malignancy risk of AUS/FLUS thyroid nodules coexisting with CLT is scarce. Therefore, we assessed the malignancy risk of AUS/FLUS thyroid nodules according to the presence of background CLT. METHODS This study included 357 surgically resected thyroid nodules with AUS/FLUS cytology. Cases with concomitant malignant nodules were excluded. CLT was defined based on the pathologic report after thyroid surgery. RESULTS Among 357 tumors, 130 tumors (36%) were confirmed to have coexisting CLT, and 170 tumors (48%) were determined to be malignant after thyroidectomy. Malignancy rates were similar in both groups (48% in each) regardless of background CLT (62/130 with CLT vs. 108/227 without CLT). In the group with CLT, thyroiditis was more frequent in the final pathology (12% with CLT vs. 1% without CLT, P = 0.003). In multivariate analysis, positive BRAFV600E mutation, highly suspicious sonographic features (K-TIRADS 5), and smaller thyroid nodules were significant factors for thyroid malignancies. CONCLUSION The malignancy rate of thyroid nodules with AUS/FLUS cytology was comparable irrespective of the presence of underlying CLT.
Collapse
Affiliation(s)
- Yoon Young Cho
- Division of Endocrinology and Metabolism, Department of Medicine, Soonchunhyang University Bucheon Hospital, College of Medicine, Soonchunhyang University, Bucheon, South Korea
| | - Yun Jae Chung
- Division of Endocrinology and Metabolism, Department of Internal Medicine, College of Medicine, Chung-Ang University, Seoul, South Korea
- *Correspondence: Yun Jae Chung,
| | - Hee Sung Kim
- Department of Pathology, College of Medicine, Chung-Ang University, Seoul, South Korea
| |
Collapse
|
8
|
Ooi LY, Nga ME. Atypia of undetermined significance/follicular lesion of undetermined significance: Asian vs. non-Asian practice, and the Singapore experience. Gland Surg 2020; 9:1764-1787. [PMID: 33224854 DOI: 10.21037/gs-20-555] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The Bethesda System for Reporting Thyroid Cytopathology has paved the way for comparisons of the practice of thyroid cytology in many different regions. However, there have been comparatively few studies documenting differences between Asian and non-Asian practice. Here, we aim to compare a few key parameters between the two regions, focusing on the indeterminate category of atypia of undetermined significance (AUS)/follicular lesion of undetermined significance (FLUS). We compared its incidence, resection rates (RRs), risk of malignancy (ROM), rate of repeat fine needle aspiration (rFNA), ROMs of cytomorphologic subcategories of nuclear atypia (AUS-N) vs. architectural atypia (AUS-A), and, finally, the incidence of papillary thyroid carcinoma (PTC) vs. follicular neoplasms (FNs) in resected AUS/FLUS cases in Asian and non-Asian regions. Where possible, these metrics were compared with the Singapore experience from a tertiary referral institution. While the incidence of AUS/FLUS was similar in both regions, we found geographical differences in the RRs and ROMs, which may reflect a higher collective threshold for surgery in Asian countries. However, both cohorts showed higher ROMs in the AUS-N subcategory as compared to the AUS-A subcategory, supporting the subclassification of the AUS/FLUS based on the presence of nuclear atypia. We also observed a higher incidence of AUS-N coupled with a higher incidence of PTC in resected AUS/FLUS nodules in Asian cohorts, while AUS-A and follicular-patterned neoplasms featured more prominently in the non-Asian cohorts. These incidences may account for the starkly different molecular approaches that we noted-in Asian (chiefly Korean and Chinese) centers, BRAF mutational analysis was favored, while gene panels and gene expression classifiers were more frequently applied in non-Asian centers (chiefly in the United States of America). Overall, the data from Singapore appears more closely aligned to non-Asian trends, despite its geographical location in Southeast Asia and its predominantly Asian population. We conclude that there is significant heterogeneity in the outcomes of the AUS/FLUS categories between and within regions, which is only partially explained by regional variations, and may also reflect different regional diagnostic and management practices. This highlights the importance of understanding the local context in the interpretation of indeterminate Bethesda categories, rather than adopting a "one-size fits all" approach.
Collapse
Affiliation(s)
- Li Yin Ooi
- Department of Pathology, National University Hospital, Singapore
| | - Min En Nga
- Department of Pathology, National University Hospital, Singapore
| |
Collapse
|
9
|
Özkara SK, Bayrak BY, Turan G. High risk of malignancy in cases with atypia of undetermined significance on fine needle aspiration of thyroid nodules even after exclusion of NIFTP. Diagn Cytopathol 2020; 48:986-997. [PMID: 32745375 DOI: 10.1002/dc.24533] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 05/31/2020] [Accepted: 06/08/2020] [Indexed: 12/15/2022]
Abstract
BACKGROUND Fine needle aspiration cytopathology (FNAC) is the most reliable tool for evaluating thyroid nodules. However, diagnosing Bethesda category III, atypia/follicular lesion of undetermined significance (AUS/FLUS), is a major limitation. The aim of this study was to evaluate the risk of malignancy (RoM) in AUS/FLUS nodules. A systematic review was also carried out analyzing the largest series. METHODS Totally 1750 cases (9%) diagnosed with AUS/FLUS were evaluated retrospectively out of 19 392 cases within last 13 years. All patients undergoing surgery for AUS/FLUS were included into the study. Histopathology results were correlated; the impact of noninvasive follicular thyroid neoplasm with papillary-like nuclear features (NIFTP) diagnosis on RoM is evaluated. RESULTS Of the 280 patients (16%) undergoing surgery, neoplasia were detected in 177 (RoN:63.2%) and malignancy in 119 (RoM:42.5%) of these neoplasia. Follicular variant of papillary thyroid carcinoma (FVPTC) was the commonest malignancy (55.5%). Additional 58 (20.7%) nodules were neoplastic, of which 26 (9.3%) were encapsulated follicular tumors with unknown malignancy potential (FT-UMP) and 32 (11.4%) were follicular adenomas. The remaining 103 patients (36.8%) had non-neoplastic nodules. After reevaluation of the encapsulated FVPTC cases, 20 of them were NIFTP and RoM dropped to 35.4% with a relative decrease of 16.7% and an absolute decrease of 7.1%. CONCLUSION In our series, 42.5% of nodules with AUS/FLUS were malignant; 63.2% of them were neoplastic. The RoM and RoN for AUS/FLUS nodules are still much higher than the revised expected RoM of international guidelines even after NIFTP cases excluded. Therefore, current recommendations should be reevaluated periodically in view of detailed clinicopathologic studies.
Collapse
Affiliation(s)
- Sevgiye Kaçar Özkara
- Faculty of Medicine, Department of Pathology, Kocaeli University, Kocaeli, Turkey
| | - Büşra Yaprak Bayrak
- Faculty of Medicine, Department of Pathology, Kocaeli University, Kocaeli, Turkey
| | - Gupse Turan
- Faculty of Medicine, Department of Pathology, Kocaeli University, Kocaeli, Turkey
| |
Collapse
|
10
|
Chronic Lymphocytic Thyroiditis May Lower Accuracy of AUS/FLUS Cytopathology in Surgical Patients. J Surg Res 2020; 245:244-248. [DOI: 10.1016/j.jss.2019.07.068] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2019] [Revised: 06/28/2019] [Accepted: 07/19/2019] [Indexed: 11/21/2022]
|
11
|
Abstract
Nodules in the thyroid are frequent. Preoperative investigations including fine-needle cytology and ultrasound cannot in all patients rule out malignancy. Thus, surgical excision for histopathologic examination is often needed. In this narrative review, we examine aspects of the surgical management of indeterminate thyroid nodules, using a comprehensive review of the available literature. The authors manually searched PubMed for relevant literature, including recently published guidelines. Hemithyroidectomy without lymph node dissection remains the recommended management in indeterminate thyroid nodules, i.e., the complete removal of one lobe of the thyroid, for indeterminate thyroid nodules, defined as nodules with fine-needle cytology fulfilling the criteria of Bethesda III or IV categories. At surgery, it is important to preserve the recurrent and superior laryngeal nerves, and intraoperative neuromonitoring is a useful adjunct. Recent data also suggest that parathyroid autofluorescent techniques are promising tools for parathyroid preservation. There is still lack of specific preoperative investigations to rule in or out central lymph node metastasis. Intraoperative frozen section of lymph nodes can be valuable, but prophylactic or diagnostic central lymph node dissection is not routinely recommended. Outcomes after thyroid surgery are better with high-volume surgeons and institutions. Surgery is probably best performed by high-volume surgeons in institutions with on-site expert pathologists and with technical adjuncts available for nerve and parathyroid preservation. Day-care surgery may be an option for selected patients.
Collapse
Affiliation(s)
- Martin Almquist
- Department of Surgery, Skane University Hospital, Lund, Sweden.,Institution for Clinical Sciences, Lund University, Lund, Sweden
| | - Andreas Muth
- Department of Surgery, Institute of Clinical Sciences, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
| |
Collapse
|
12
|
Indeterminate nodules by the Bethesda system for reporting thyroid cytopathology in Israel: Frequency, and risk of malignancy after reclassification of follicular thyroid neoplasm with papillary-like features. Eur J Surg Oncol 2019; 45:1182-1187. [DOI: 10.1016/j.ejso.2019.03.015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2018] [Revised: 02/27/2019] [Accepted: 03/11/2019] [Indexed: 02/06/2023] Open
|
13
|
Li F, Pan D, Wu Y, Peng J, Li Q, Gui X, Ma W, Yang H, He Y, Chen J. Ultrasound characteristics of thyroid nodules facilitate interpretation of the malignant risk of Bethesda system III/IV thyroid nodules and inform therapeutic schedule. Diagn Cytopathol 2019; 47:881-889. [PMID: 31211509 PMCID: PMC6772092 DOI: 10.1002/dc.24248] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Revised: 05/19/2019] [Accepted: 05/23/2019] [Indexed: 12/15/2022]
Abstract
Background This study was designed to explore whether ultrasound of thyroid nodules facilitates the interpretation of the malignant risk of Bethesda III/IV thyroid nodules to inform further therapies. Methods We reviewed patient records in which the results of ultrasound‐guided fine‐needle aspiration (US‐FNA) were classified by the Bethesda III/IV in our institution between January 2016 and June 2018. Studies were retrieved from PubMed, Cochrane Central Register of Controlled Trials, ISI Web of Science, Science Direct, Wiley Online Library, EMBASE, China National Knowledge Infrastructure, WanFang, and Chinese VIP. The odds ratio (OR) was used to measure associations between risk factors and thyroid nodule malignancy. Results Fifty‐nine cases of Bethesda III/IV with corresponding surgeries were included, and the malignancy risk was 54.2%. Meta‐analysis revealed irregular borders, solitary nodules, hypoechogenicity, microcalcifications, and being taller than wide, all of which increased the malignancy risk of thyroid nodules. Combined ORs for these factors were 4.08 (95% CI: 2.34‐7.14, P < .001), 2.18 (95% CI: 1.39‐3.42, P = .001), 2.02 (95% CI: 1.35‐3.01, P = .001), 3.21 (95% CI: 2.26‐4.56, P < .001), and 4.35 (95% CI: 3.07‐6.15, P < .001), respectively. Conclusion As the risk of malignancy for papillary thyroid carcinoma (PTC) is high, when any one of the five ultrasound features of malignancy were confirmed, repeated FNA is recommended to confirm PTC‐type malignancy, even though nodules were Bethesda III/IV classification. However, repeated FNA should be avoided when none of these ultrasound features are identified because repeated FNA does not contribute to identifying non‐PTC type malignancies, such as follicular thyroid carcinoma and poorly differentiated thyroid carcinoma.
Collapse
Affiliation(s)
- Fu Li
- Department of Gastrointestinal Surgery, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region, People's Republic of China
| | - Denghua Pan
- Department of Ultrasonography, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region, People's Republic of China
| | - Yuquan Wu
- Department of Ultrasonography, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region, People's Republic of China
| | - Jinbo Peng
- Department of Ultrasonography, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region, People's Republic of China
| | - Qing Li
- Department of Ultrasonography, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region, People's Republic of China
| | - Xiaolong Gui
- Department of Gastrointestinal Surgery, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region, People's Republic of China
| | - Wei Ma
- Department of Pathology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region, People's Republic of China
| | - Hong Yang
- Department of Ultrasonography, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region, People's Republic of China
| | - Yun He
- Department of Ultrasonography, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region, People's Republic of China
| | - Junqiang Chen
- Department of Gastrointestinal Surgery, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region, People's Republic of China
| |
Collapse
|