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Abe H, Kawahara A, Akiba J, Yamaguchi R. Advances in diagnostic liquid-based cytology. Cytopathology 2024. [PMID: 38837293 DOI: 10.1111/cyt.13405] [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: 01/29/2024] [Revised: 05/09/2024] [Accepted: 05/20/2024] [Indexed: 06/07/2024]
Abstract
Liquid-based cytology (LBC) has changed the landscape of gynaecological cytology. A growing demand exists for LBC in diagnostic cytology, particularly for ancillary testing, such as immunocytochemistry and molecular testing. Ancillary testing solely based on conventional preparation (CP) methods remains challenging. Recently, the increased demand for specialist testing and minimally invasive techniques, such as endoscopic ultrasonography fine-needle aspiration, to obtain cellular samples has led to an increasing demand for ancillary testing on cytology LBC supernatant, slides and cell block (CB). This facilitates the diagnosis and prognosis in cytology samples enabling personalized treatment. An understanding of the history and future prospects of LBC is crucial for its application in routine diagnostics by cytopathologists and cytotechnologists. In this review, we initiated an internet search using the keyword 'liquid-based cytology', and we conducted a literature review to discuss the usefulness of combined diagnosis of LBC and CP, immunocytochemistry and molecular testing and assessed the quality of nucleic acids in diagnostic LBC. High-quality and cell-rich diagnostic LBC surpassed the CP method alone in terms of reliability and versatility of ancillary testing in cytological diagnosis. Conclusively, diagnostic LBC lends itself to various new technologies and is expected to continue evolving with innovations in the future.
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Affiliation(s)
- Hideyuki Abe
- Department of Diagnostic Pathology, Kurume University Hospital, Kurume, Japan
| | - Akihiko Kawahara
- Department of Diagnostic Pathology, Kurume University Hospital, Kurume, Japan
| | - Jun Akiba
- Department of Diagnostic Pathology, Kurume University Hospital, Kurume, Japan
| | - Rin Yamaguchi
- Department of Diagnostic Pathology, Nagasaki University Hospital, Nagasaki, Japan
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2
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Özer M, Özekinci S. The Similarities and Differences between Liquid-based and Conventional Methods in Evaluation of Thyroid Fine Needle Aspiration Cytologies. J Cytol 2023; 40:140-144. [PMID: 37745811 PMCID: PMC10516154 DOI: 10.4103/joc.joc_27_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 04/05/2023] [Accepted: 07/07/2023] [Indexed: 09/26/2023] Open
Abstract
Aims Thyroid nodules are one of the most frequent medical issues in endocrinology in our country and around the world. The appropriate evaluation of the nodule is critical in the management of patients. Fine needle aspiration cytology (FNAC) is one of the most accurate tools for evaluating these nodules. Conventional and liquid-based (LB) methods are available for thyroid FNAC. In this paper, we aim to determine the best cytological method for the evaluation of thyroid fine needle aspiration materials. Settings and Design Fine needle aspiration (FNA) materials obtained and prepared by conventional and LB methods from 310 patients were evaluated. These slides were compared in terms of 12 cytological parameters in a three-tiered system, and the kappa coefficient was calculated. Methods and Material Two slides were prepared from FNA samples, and the rest of the material was left in protective solution for LB cytology. Surepath was used as a LB technique. Conventional slides (CS) were left to dry in the air and stained with May Grunwald Giemsa. Slides prepared by two different techniques were compared in 12 cytomorphological parameters, and Kappa coefficients and correlations were calculated. Statistical Analysis Used Kappa statistics. Results In comparison of LB and CS, the highest kappa coefficient was in chromatin texture (ĸ:0.738) and inflammatory cells (ĸ: 0.482). On other parameters, fair or poor agreement was observed. Conclusions Although there are some superiorities to LB cytology, co-application of these two methods is more favorable in thyroid fine needle aspiration.
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Affiliation(s)
- Mehmet Özer
- Department of Pathology, Bursa Yuksek Ihtisas Training and Research Hospital, Bursa, Turkey
| | - Selver Özekinci
- Department of Pathology, Dicle University, Diyarbakır, Türkiye
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Xiong XJ, Xiao MM, Zhang YX, Liu DG, Jin ML, Wang J, Xu HT, Li QC, Wu GP. The Accurate Interpretation and Clinical Significance of Morphological Features of Fine Needle Aspiration Cells in Papillary Thyroid Carcinoma. Anal Cell Pathol (Amst) 2023; 2023:9397755. [PMID: 37181946 PMCID: PMC10171979 DOI: 10.1155/2023/9397755] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 03/01/2023] [Accepted: 04/21/2023] [Indexed: 05/16/2023] Open
Abstract
Papillary thyroid carcinoma (PTC) is the most common malignant neoplasm of the thyroid gland; fine needle aspiration cytology is the most basic and reliable diagnostic method before PTC operation. However, it is not clear which cell morphological changes can be used as a reliable standard for the diagnosis of PTC. A retrospective analysis was performed on 337 patients with PTC confirmed by postoperative histology. An additional 197 randomly selected patients with benign thyroid lesions were included in the study and used as a control group. True papillary arrangements, swirl arrangements, and escape arrangements had high specificity, all of which were 100%, but only swirl arrangements had ideal sensitivity (77.61%). The nuclear volume characteristics had a high sensitivity of more than 90%, but the specificities of both nuclear crowding and nuclear overlap were too low, only 16.34% and 23.35%. The sensitivities of five nuclear structural characteristics were more than 90%, but only the specificity of intranuclear cytoplasmic pseudoinclusions (INCIs) reached 100%, nuclear contour irregularity and pale nuclei with powdery chromatin also had ideal interpretation value except for grooves and marginally placed micronucleoli. Although the sensitivity of psammoma bodies (PBs) was low, the specificity was 100%. In terms of preparation methods, the method of liquid-based preparation (LBP) is obviously better than that of conventional smears. The diagnostic efficiency by the combined detection method of parallel tests showed that without reducing the specificity, the sensitivity increased with the increase of the number of morphological characteristics and finally reached 98.81%. The INCIs and swirl arrangements are the most common and important indicators for the diagnosis of PTC, whereas papillary-like arrangements, the crowding and overlap of nuclear, grooves, marginally placed micronucleoli, and multinucleated giant cells are of little significance for the diagnosis of PTC.
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Affiliation(s)
- Xue-Jiao Xiong
- Department of Pathology, The First Hospital of China Medical University, Shenyang 110001, China
| | - Ming-Ming Xiao
- Department of Pathology, The People's Hospital of Liaoning Province, Shenyang 110016, China
| | - Yi-Xia Zhang
- Department of Ultrasound, The First Hospital of China Medical University, Shenyang 110001, China
| | - Dong-Ge Liu
- Department of Pathology, Beijing Hospital, National Geriatric Center, Beijing 100730, China
| | - Mu-Lan Jin
- Department of Pathology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing 100020, China
| | - Jian Wang
- Department of Pathology, The First Hospital of China Medical University, Shenyang 110001, China
| | - Hong-Tao Xu
- Department of Pathology, The First Hospital of China Medical University, Shenyang 110001, China
| | - Qing-Chang Li
- Department of Pathology, The First Hospital of China Medical University, Shenyang 110001, China
| | - Guang-Ping Wu
- Department of Pathology, The First Hospital of China Medical University, Shenyang 110001, China
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Hirokawa M, Niioka H, Suzuki A, Abe M, Arai Y, Nagahara H, Miyauchi A, Akamizu T. Application of deep learning as an ancillary diagnostic tool for thyroid FNA cytology. Cancer Cytopathol 2022; 131:217-225. [PMID: 36524985 DOI: 10.1002/cncy.22669] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 10/20/2022] [Accepted: 11/07/2022] [Indexed: 12/23/2022]
Abstract
BACKGROUND Several studies have used artificial intelligence (AI) to analyze cytology images, but AI has yet to be adopted in clinical practice. The objective of this study was to demonstrate the accuracy of AI-based image analysis for thyroid fine-needle aspiration cytology (FNAC) and to propose its application in clinical practice. METHODS In total, 148,395 microscopic images of FNAC were obtained from 393 thyroid nodules to train and validate the data, and EfficientNetV2-L was used as the image-classification model. The 35 nodules that were classified as atypia of undetermined significance (AUS) were predicted using AI training. RESULTS The precision-recall area under the curve (PR AUC) was >0.95, except for poorly differentiated thyroid carcinoma (PR AUC = 0.49) and medullary thyroid carcinoma (PR AUC = 0.91). Poorly differentiated thyroid carcinoma had the lowest recall (35.4%) and was difficult to distinguish from papillary thyroid carcinoma, medullary thyroid carcinoma, and follicular thyroid carcinoma. Follicular adenomas and follicular thyroid carcinomas were distinguished from each other by 86.7% and 93.9% recall, respectively. For two-dimensional mapping of the data using t-distributed stochastic neighbor embedding, the lymphomas, follicular adenomas, and anaplastic thyroid carcinomas were divided into three, two, and two groups, respectively. Analysis of the AUS nodules showed 94.7% sensitivity, 14.4% specificity, 56.3% positive predictive value, and 66.7% negative predictive value. CONCLUSIONS The authors developed an AI-based approach to analyze thyroid FNAC cases encountered in routine practice. This analysis could be useful for the clinical management of AUS and follicular neoplasm nodules (e.g., an online AI platform for thyroid cytology consultations).
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Affiliation(s)
| | - Hirohiko Niioka
- Institute for Datability Science Osaka University Suita Japan
| | - Ayana Suzuki
- Department of Diagnostic Pathology and Cytology Kuma Hospital Kobe Japan
| | - Masatoshi Abe
- Institute for Datability Science Osaka University Suita Japan
| | - Yusuke Arai
- Institute for Datability Science Osaka University Suita Japan
| | - Hajime Nagahara
- Institute for Datability Science Osaka University Suita Japan
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Taniuchi M, Terada T, Kawata R. Fine-Needle Aspiration Cytology for Parotid Tumors. LIFE (BASEL, SWITZERLAND) 2022; 12:life12111897. [PMID: 36431032 PMCID: PMC9693155 DOI: 10.3390/life12111897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 11/12/2022] [Accepted: 11/14/2022] [Indexed: 11/17/2022]
Abstract
Fine-needle aspiration (FNA) cytology is widely used in clinical practice as a simple and minimally invasive test for parotid tumors that allows for preoperative estimation of benignancy and malignancy, histological type, and malignancy grade and can be performed on an outpatient basis. In recent years, cell blocks prepared with core needle biopsy (CNB) and liquid-based cytology (LBC) have increased the reliability of immunostaining and molecular biological testing, leading to improved diagnostic accuracy. In 2018, the Milan System for Reporting Salivary Gland Cytology was introduced, but it does not include malignancy grade or histological type, so we proposed the Osaka Medical College classification as a more clinically based cell classification that includes both types of information, and we have reported on its usefulness. This review gives an overview of the history and use of FNA and describes CNB and LBC and the two classification systems.
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Sharma R, Zaheer S, Ahluwalia C. Diagnostic utility of conventional and liquid-based cytology in the management of thyroid lesions; an institutional experience. Cytojournal 2022; 19:36. [PMID: 35928535 PMCID: PMC9345136 DOI: 10.25259/cytojournal_34_2021] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Accepted: 09/04/2021] [Indexed: 11/16/2022] Open
Abstract
Objectives: Liquid-based cytology (LBC) is becoming a useful method in evaluating both gynecological and nongynecological preparations. Many studies have been conducted these days to see the quality of LBC in diagnosing thyroid lesions and its role is yet to be standardized. This study has been done to pick the cytomorphological features of thyroid lesions on LBC and to compare them with the conventional cytology of these lesions.The objective of the study is to evaluate the efficacy of thyroid fine-needle aspiration cytology processed by LBC as compared to conventional smears. Material and Methods: A prospective study has been done on 53 cases of thyroid lesions using standard conventional and LBC techniques. Results: In most of the cases, the cytological features are similar in conventional cytology smears and LBC, but the colloid film and the lymphocytic component show a clear picture on direct smears, whereas nuclear and cytoplasmic details are better evaluated in LBC slides. The preservative solution used in LBC could be efficiently used for the application of immunocytochemical and molecular techniques. Conclusion: LBC does not represent as a valid alternative to conventional cytology but it can be considered as a diagnostic utility process especially due to the possibility of applying additional techniques which enhance the efficacy of the cytological diagnosis of thyroid lesions.
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Affiliation(s)
- Rohit Sharma
- Department of Pathology Andaman and Nicobar Islands Institute of Medical Sciences, Port Blair VMMC and Safdarjung Hospital, New Delhi, India,
| | - Sufian Zaheer
- Department of Pathology, VMMC and Safdarjung Hospital, New Delhi, India,
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Machine learning methods for automated classification of tumors with papillary thyroid carcinoma-like nuclei: A quantitative analysis. PLoS One 2021; 16:e0257635. [PMID: 34550999 PMCID: PMC8457451 DOI: 10.1371/journal.pone.0257635] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Accepted: 09/04/2021] [Indexed: 11/19/2022] Open
Abstract
When approaching thyroid gland tumor classification, the differentiation between samples with and without "papillary thyroid carcinoma-like" nuclei is a daunting task with high inter-observer variability among pathologists. Thus, there is increasing interest in the use of machine learning approaches to provide pathologists real-time decision support. In this paper, we optimize and quantitatively compare two automated machine learning methods for thyroid gland tumor classification on two datasets to assist pathologists in decision-making regarding these methods and their parameters. The first method is a feature-based classification originating from common image processing and consists of cell nucleus segmentation, feature extraction, and subsequent thyroid gland tumor classification utilizing different classifiers. The second method is a deep learning-based classification which directly classifies the input images with a convolutional neural network without the need for cell nucleus segmentation. On the Tharun and Thompson dataset, the feature-based classification achieves an accuracy of 89.7% (Cohen's Kappa 0.79), compared to the deep learning-based classification of 89.1% (Cohen's Kappa 0.78). On the Nikiforov dataset, the feature-based classification achieves an accuracy of 83.5% (Cohen's Kappa 0.46) compared to the deep learning-based classification 77.4% (Cohen's Kappa 0.35). Thus, both automated thyroid tumor classification methods can reach the classification level of an expert pathologist. To our knowledge, this is the first study comparing feature-based and deep learning-based classification regarding their ability to classify samples with and without papillary thyroid carcinoma-like nuclei on two large-scale datasets.
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Chen YA, Lai YC, Lin SJ, Yang CS. Utility of cell block as an adjunct to liquid-based cytology for diagnosing papillary thyroid carcinoma. INDIAN J PATHOL MICR 2021; 63:581-586. [PMID: 33154309 DOI: 10.4103/ijpm.ijpm_999_19] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Background Although liquid-based cytology (LBC) has gained popularity among clinical laboratories, it is unclear whether it is equivalent to conventional smears for making a definite diagnosis of papillary thyroid carcinoma (PTC). The Bethesda System for Reporting Thyroid Cytopathology (TBSRTC) suggests a definite diagnosis of PTC is preferred when there are at least one of three features (papillary architecture, psammomatous calcifications, and frequent pseudonuclear inclusions) plus other typical cytomorphological findings. This study evaluated whether an additional cell block (CB), prepared from the residual LBC material, could help improve the diagnosis of PTC. Materials and Methods A total of 62 cases with both ThinPrep LBC and CB preparations and histopathological follow-up of PTC were retrieved between November 2016 and March 2019. The ThinPrep LBC and CB slides were reviewed separately to identify any papillary architecture, psammomatous calcifications, or pseudonuclear inclusions for diagnosing PTC. Results Among the 51 cases with cytological diagnosis of PTC in the LBC+CB slides, the CB provided additional diagnostic information in 15 cases, which were initially diagnosed as suspicious for PTC based on the LBC slides alone. This information included papillary architecture (n=11), psammomatous calcification (n=1) and pseudonuclear inclusions (n=5). The number of specimens in the 51 cases containing at least one of the three features increased from 42 (LBC) to 51 (LBC+CB). The accuracy for diagnosing PTC increased from 58.1% for LBC alone to 82.3% for the LBC+CB examination. Conclusion An adjunctive CB preparation may improve the LBC technique for diagnosing PTC.
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Affiliation(s)
- Yun-An Chen
- Department of Pathology and Laboratory Medicine, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Ying-Ching Lai
- Department of Pathology and Laboratory Medicine, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Shu-Jiuan Lin
- Department of Pathology and Laboratory Medicine, Taichung Veterans General Hospital; Department of Medical Laboratory Science and Biotechnology, Central Taiwan University of Science and Technology, Taichung, Taiwan
| | - Chi-Shun Yang
- Department of Pathology and Laboratory Medicine, Taichung Veterans General Hospital; Department of Medical Laboratory Science and Biotechnology, Central Taiwan University of Science and Technology, Taichung, Taiwan
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Zhao J, Yao X, Song C, Wang C. A comparative study of two liquid-based preparation methods: membrane-based and sedimentation in fine needle aspiration cytology diagnosis in thyroid nodules. World J Surg Oncol 2020; 18:13. [PMID: 31948446 PMCID: PMC6966855 DOI: 10.1186/s12957-020-1787-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Accepted: 01/07/2020] [Indexed: 12/27/2022] Open
Abstract
Background As thyroid fine needle aspiration (FNA) shows a certain limitation in the diagnosis of conventional smears, novel approaches like liquid-based cytology (LBC) have been gradually applied recently. Studies have shown the difference between the conventional smears (CSs) and liquid-based smears on fine needle aspiration cytology (FNAC) diagnosis, but the impacts of different liquid-based preparation (LBP) methods, including membrane-based and sedimentation, on diagnosis are still not clear. In this study, the effects of liquid-based smears prepared by different methods on the cytological interpretation were studied. Methods A total of 221 thyroid liquid-based FNAC cases from January 2017 to October 2018 were collected. We retrospectively studied and compared the effects of the membrane-based and sedimentation LBP methods through The Bethesda System for Reporting Thyroid Cytopathology (TBS) diagnosis and risk of malignancy assessment. Besides, we made an evaluation on the diagnostic differences in the effects of different preparation methods on the cell morphology and tissue structure of papillary thyroid carcinoma (PTC) for more accurate FNAC diagnosis. Results Among the 221 cases reviewed, membrane-based method was applied in 153 cases and sedimentation in 68 cases. According to the diagnostic criteria of 2017 TBS, TBSVI and TBSV thyroid could be cytologically diagnosed by membrane-based (49.0% (75/153) and 25.5% (39/153)) and sedimentation (52.9(36/68) and 25(17/68)) methods, and both were confirmed as PTC through histopathological diagnosis after operation, with the malignancy degree as high as 100%. In addition, of the 30 cases that were diagnosed as TBSIII thyroid nodules with the membrane-based method, 15 cases were pathologically malignant after an operation, with the malignancy degree of 50% (15/30), while that in 11 cases using the sedimentation method was 45.4% (5/11). PTC could be detected in both the TBSIV and TBSII thyroid nodules diagnosed by membrane-based method, with the sensitivity of 87.0% (114/131) lower than that by sedimentation method (91.4% (53/58)), showing the lower consistency with the histopathological result (K = 0.635 vs K = 0.757). Among the membrane-based smears, 23.5% (36/153) had fewer follicular epithelial cells, 55.6% (20/36) of which were considered to be suspicious for PTC from cell karyotype and tissue arrangement. While among the sedimentation smears, 16.2% (11/68) had fewer follicular epithelial cells, and 63.6% (7/11) was suspicious for PTC. In 72.5% (95/131) membrane-based smears of PTC, the papillary and swirling structures were not obvious, showing as crowded syncytial cell masses, while in 55.2% (32/58) sedimentation smears, both structures were visible with obvious three-dimensional papillary structure, and the fibrovascular axis still remained. Conclusion LBP technique is feasible for FNAC diagnosis, and the sedimentation shows more advantages, like higher PTC detection rate and good consistency with postoperative histopathological diagnosis. A clear understanding of the subtle differences in the effects of membrane-based and sedimentation methods on the cell morphology and tissue structure could be conducive to the definitive diagnosis of PTC before operation.
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Affiliation(s)
- Juan Zhao
- Department of Pathology, Shaoxing People's Hospital (Shaoxing Hospital, Zhejiang University School of Medicine), No. 568 Zhongxing North Road, Shaoxing, 312000, China
| | - Xiaofei Yao
- Department of Pathology, Shaoxing People's Hospital (Shaoxing Hospital, Zhejiang University School of Medicine), No. 568 Zhongxing North Road, Shaoxing, 312000, China
| | - Chunjiao Song
- Medical Research Centre, Shaoxing People's Hospital (Shaoxing Hospital, Zhejiang University School of Medicine), Shaoxing, 312000, China
| | - Cheng Wang
- Department of Pathology, Shaoxing People's Hospital (Shaoxing Hospital, Zhejiang University School of Medicine), No. 568 Zhongxing North Road, Shaoxing, 312000, China.
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Kanematsu R, Hirokawa M, Higuchi M, Suzuki A, Aga H, Tanaka A, Yamao N, Hayashi T, Kuma S, Miyauchi A. Risk of malignancy and clinical outcomes of cyst fluid only nodules in the thyroid based on ultrasound and aspiration cytology. Diagn Cytopathol 2020; 48:30-34. [PMID: 31625693 PMCID: PMC6972650 DOI: 10.1002/dc.24323] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Revised: 08/29/2019] [Accepted: 09/17/2019] [Indexed: 11/12/2022]
Abstract
BACKGROUND The number of extensive studies focusing on cyst fluid only (CFO) thyroid nodules is limited, and the risk of malignancy (ROM) in CFO nodules has not been well-established. Thus, the purpose of this study was to investigate CFO nodules using cytology and ultrasound. In addition, we sought to define the ROM and determine the recommended clinical management of CFO nodules. METHODS We retrospectively reviewed cytological preparations of 678 nodules that were originally identified as CFO nodules, including conventional specimens in 209 nodules, liquid based cytology (LBC) specimens in 221 nodules, and both conventional and LBC specimens in 248 nodules. Ultrasound reports with representative photographs were also reviewed. RESULTS Of the 678 CFO nodules, 214 (31.6%) were reclassified into other categories, including non-diagnostic/unsatisfactory (ND/UNS) except for CFO (n = 15), benign (n = 198), and malignant (n = 1). Conventional preparations (33.5%) were more frequently reclassified than LBC preparations (13.6%; P < .0001). Re-aspiration for diagnosis was performed for only one calcified nodule. The rates of surgical resection and malignancy were 3.0% and 0.2%, respectively. Based on American Thyroid Association guidelines and the Kuma Hospital ultrasound classification, worrisome sonographic features were identified in 5.8% and 0% of CFO nodules, respectively. CONCLUSION We propose that CFO nodules should be classified as separate from ND/UNS nodules; they should be categorized as a subtype of benign nodules. However, it is essential that fine-needle aspiration cytology be performed under ultrasound-guided real-time visualization of needle placement in the target nodule in all cases.
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Affiliation(s)
- Risa Kanematsu
- Department of Clinical LaboratoryKuma HospitalKobeHyogoJapan
| | | | - Miyoko Higuchi
- Department of Clinical LaboratoryKuma HospitalKobeHyogoJapan
| | - Ayana Suzuki
- Department of Clinical LaboratoryKuma HospitalKobeHyogoJapan
| | - Hitomi Aga
- Department of Clinical LaboratoryKuma HospitalKobeHyogoJapan
| | - Aki Tanaka
- Department of Clinical LaboratoryKuma HospitalKobeHyogoJapan
| | - Naoki Yamao
- Department of Clinical LaboratoryKuma HospitalKobeHyogoJapan
| | - Toshitetsu Hayashi
- Department of Diagnostic Pathology and CytologyKuma HospitalKobeHyogoJapan
| | - Seiji Kuma
- Department of Diagnostic Pathology and CytologyKuma HospitalKobeHyogoJapan
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Rossi ED, Faquin WC, Pantanowitz L. Cytologic features of aggressive variants of follicular-derived thyroid carcinoma. Cancer Cytopathol 2019; 127:432-446. [PMID: 31150164 DOI: 10.1002/cncy.22136] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2019] [Revised: 04/03/2019] [Accepted: 04/03/2019] [Indexed: 12/18/2022]
Abstract
Certain carcinomas of the thyroid gland behave aggressively resulting in increased patient morbidity and poor patient prognosis. The diagnosis of these aggressive thyroid cancer subtypes is sometimes challenging and subject to increased interobserver variability. This review deals with the cytological features of such tumors including aggressive variants of papillary thyroid carcinoma, poorly differentiated thyroid carcinoma, and anaplastic thyroid carcinoma. These malignancies fall into 2 groups based on their cytomorphology: those that exhibit distinct microscopic features (eg, nuclear findings typical of classical papillary thyroid carcinoma or marked anaplasia) and those that present with more subtle cytologic features (eg, nuclear pseudostratification, "soap bubble" nuclei, supranuclear or subnuclear cytoplasmic vacuoles, rosette-like structures, hobnail cells). We review the literature regarding these aggressive thyroid cancers and highlight important phenotypic characteristics that can be useful for their diagnosis based on fine needle aspiration.
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Affiliation(s)
- Esther Diana Rossi
- Division of Anatomic Pathology and Histology, Catholic University of Sacred Heart, Rome, Italy
| | - William C Faquin
- Department of Pathology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Liron Pantanowitz
- Department of Pathology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
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12
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Suzuki A, Hirokawa M, Ito A, Takada N, Higuchi M, Hayashi T, Kuma S, Miyauchi A. Identification of Cytological Features Distinguishing Mucosa-Associated Lymphoid Tissue Lymphoma from Reactive Lymphoid Proliferation Using Thyroid Liquid-Based Cytology. Acta Cytol 2018; 62:93-98. [PMID: 29597203 DOI: 10.1159/000487502] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2017] [Accepted: 02/08/2018] [Indexed: 11/19/2022]
Abstract
OBJECTIVE To identify cytological differences between mucosa-associated lymphoid tissue lymphoma (MALT-L) and nonneoplastic lymphocytes using thyroid liquid-based cytology (LBC). STUDY DESIGN We observed LBC and conventional specimens from 35 MALT-L cases, 3 diffuse large B-cell cell lymphoma (DLBCL) cases, and 44 prominent nonneoplastic lymphocytic infiltration cases. RESULTS In MALT-L cases, the incidence of lymphoglandular bodies in the LBC specimens was lower than that in the conventional specimens (p < 0.001). Moreover, the nuclear sizes in LBC specimens were larger than those in conventional specimens. In 62.9% of the MALT-L and all DLBCL specimens, large nuclei were present in > 10% of the lymphoid cells in LBC specimens. Two cases with prominent nonneoplastic lymphocytic infiltration also exhibited these findings. In LBC specimens, swollen naked nuclei with less punctate chromatin patterns and thin nuclear margins were observed in 92.1% of lymphoma and 20.5% of prominent nonneoplastic lymphocytic infiltration. Elongated nuclei were significantly more apparent in thyroid lymphoma than in prominent nonneoplastic lymphocytic infiltration (p < 0.001), with a significantly higher incidence in LBC specimens than in conventional specimens (p < 0.001). CONCLUSIONS Lymphoglandular bodies are not reliable markers for lymphoma diagnosis using LBC specimens. Large, swollen naked, and elongated nuclei are useful in distinguishing thyroid lymphoma from nonneoplastic lymphocytes in LBC specimens.
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Affiliation(s)
- Ayana Suzuki
- Department of Clinical Laboratory, Kuma Hospital, Kobe, Japan
| | | | - Aki Ito
- Department of Clinical Laboratory, Kuma Hospital, Kobe, Japan
| | - Nami Takada
- Department of Clinical Laboratory, Kuma Hospital, Kobe, Japan
| | - Miyoko Higuchi
- Department of Clinical Laboratory, Kuma Hospital, Kobe, Japan
| | - Toshitetsu Hayashi
- Department of Diagnostic Pathology and Cytology, Kuma Hospital, Kobe, Japan
| | - Seiji Kuma
- Department of Diagnostic Pathology and Cytology, Kuma Hospital, Kobe, Japan
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Sahin D, Yilmazbayhan D, Firat P, Hacisalihoglu UP, Kirimlioglu SH, Celenk E, Arslan R. Comparison of conventional cytology and SurePath in split thyroid fine needle aspiration materials. Cytopathology 2017; 28:291-298. [PMID: 28696007 DOI: 10.1111/cyt.12430] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/17/2017] [Indexed: 01/22/2023]
Abstract
OBJECTIVE The aim of the present study was to compare the cytomorphological features and cytopathological diagnoses in thyroid aspiration materials prepared by SurePath® (SP) and conventional cytology (CC). MATERIALS AND METHODS Fine needle aspiration (FNA) materials from 180 thyroid nodules were divided into two groups to prepare three conventional smears and one SP slide. Twenty-nine cytomorphological features of thyroid lesions were compared in the CC and SP slides. The Kappa coefficiency was determined for each. The cytopathological diagnosis of CC and SP were compared. RESULTS The feature with the lowest Kappa coefficient was the haemorrhagic background, whereas nuclear molding had the highest Kappa coefficient. The rates of the atypical and suspicious cytopathological diagnostic categories were decreased, whereas the rates of benign and malignant categories were increased in SP. When the cytopathological diagnoses of CC and SP were compared with the histopathological diagnoses of the 31 thyroidectomy materials, the results were similar. CONCLUSION The common problems seen in CC, such as an excessive number of slides, a haemorrhagic background and air drying artefact in the SP method were not encountered. Through these advantages, the rate of the indeterminate cytopathological diagnosis was low in SP. In addition to those advantages, the increased rates of non-diagnostic cases, the difficulty in evaluating the cytomorphologic features owing to tridimensional structures and the smaller size of the cells and the presence of tridimensional structures uninterpreted microscopically were the disadvantages of SP. The present results showed that SP could be used instead of CC in thyroid cytopathology.
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Affiliation(s)
- D Sahin
- Department of Pathology, Acıbadem Health Group, Istanbul, Turkey
| | - D Yilmazbayhan
- Department of Pathology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - P Firat
- Department of Pathology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - U P Hacisalihoglu
- Department of Pathology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | | | - E Celenk
- Department of Radiology, Istanbul Faculty of Medicine, Istanbul, Turkey
| | - R Arslan
- Department of Radiology, Istanbul Faculty of Medicine, Istanbul, Turkey
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Ito Y, Miyauchi A, Hirokawa M. Letter to the Editor: Reply. World J Surg 2017; 41:2645-2646. [PMID: 28332059 DOI: 10.1007/s00268-017-3995-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yasuhiro Ito
- Department of Surgery, Kuma Hospital, 8-2-35 Shimoyamate-dori, Chuo-ku, Kobe, Hyogo, 650-0011, Japan.
| | - Akira Miyauchi
- Department of Surgery, Kuma Hospital, 8-2-35 Shimoyamate-dori, Chuo-ku, Kobe, Hyogo, 650-0011, Japan
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15
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Pusztaszeri M, Auger M. Update on the cytologic features of papillary thyroid carcinoma variants. Diagn Cytopathol 2017; 45:714-730. [PMID: 28262004 DOI: 10.1002/dc.23703] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Revised: 02/16/2017] [Accepted: 02/17/2017] [Indexed: 12/13/2022]
Abstract
Papillary thyroid cancer (PTC), which accounts for 85-90% of all thyroid cancers, is generally an indolent tumor with long term survival rates >95%. A reliable definitive diagnosis of PTC is usually straightforward in fine needle aspirates of conventional PTC whenever the characteristic papillary and/or flat honeycomb sheet-like architecture and the typical nuclear features of chromatin pallor, nuclear enlargement, crowding, grooves and pseudoinclusions are encountered. Conventional PTC, however, has diminished in relative frequency as compared to PTC variants, especially the noninvasive follicular variant of PTC, an indolent tumor which has recently been reclassified as "noninvasive follicular thyroid neoplasm with papillary-like nuclear features" (NIFTP). These PTC variants are characterized by various architecture, cell type and shape, and stromal features, some of which can be recognized cytologically. Awareness of the cytomorphological spectrum and of the characteristic cytological features of these PTC variants is important to avoid diagnostic pitfalls. In this article, we review the different variants of PTC, including their cytomorphologic features, differential diagnosis, and salient molecular features. Diagn. Cytopathol. 2017;45:714-730. © 2017 Wiley Periodicals, Inc.
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Affiliation(s)
- Marc Pusztaszeri
- Department of Pathology, Geneva University Hospitals, Geneva, Switzerland
| | - Manon Auger
- Department of Pathology, McGill University Health Center and McGill University, Montreal, Quebec, Canada
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16
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Pusztaszeri M, Rossi ED, Auger M, Baloch Z, Bishop J, Bongiovanni M, Chandra A, Cochand-Priollet B, Fadda G, Hirokawa M, Hong S, Kakudo K, Krane JF, Nayar R, Parangi S, Schmitt F, Faquin WC. The Bethesda System for Reporting Thyroid Cytopathology: Proposed Modifications and Updates for the Second Edition from an International Panel. Acta Cytol 2016; 60:399-405. [PMID: 27764825 DOI: 10.1159/000451020] [Citation(s) in RCA: 77] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The Bethesda System for Reporting Thyroid Cytology (TBSRTC) was proposed in 2007 at the National Cancer Institute Thyroid Fine Needle Aspiration State of the Art and Science Conference held in Bethesda, Maryland. The aim was to address the inconsistent and sometimes confusing reporting terminologies used for thyroid FNA throughout the world. The TBSRTC consists of 6 diagnostic categories, each associated with an implied risk of malignancy that translates directly into a clinical management algorithm. Since the publication of the TBSRTC cytology Atlas in January 2010, considerable experience has been gained regarding its application in cytology practice, clinical impact, and limitations. In conjunction with the International Academy of Cytology (IAC), an international panel composed of sixteen cytopathologists and an endocrinologist with special interest in thyroid cytology, including several co-authors of the 2010 TBSRTC Atlas, was created to: (1) analyze the current worldwide impact of TBSRTC, (2) report on the current state of TBSRTC based upon a review of the published literature, and (3) provide possible recommendations for a future update of TBSRTC. Herein, we summarize the panel's deliberations and key recommendations that our panel hopes will be useful during the preparation of the second edition of TBSRTC.
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Affiliation(s)
- Marc Pusztaszeri
- Department of Pathology, Geneva University Hospitals, Geneva, Switzerland
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17
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Pusztaszeri M, Rossi ED, Auger M, Baloch Z, Bishop J, Bongiovanni M, Chandra A, Cochand-Priollet B, Fadda G, Hirokawa M, Hong S, Kakudo K, Krane JF, Nayar R, Parangi S, Schmitt F, Faquin WC. The Bethesda System for Reporting Thyroid Cytopathology: proposed modifications and updates for the second edition from an international panel. J Am Soc Cytopathol 2016; 5:245-251. [PMID: 31042501 DOI: 10.1016/j.jasc.2016.08.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The Bethesda System for Reporting Thyroid Cytology (TBSRTC) was proposed in 2007 at the National Cancer Institute Thyroid Fine Needle Aspiration State of the Art and Science » Conference held in Bethesda, Maryland. The aim was to address the inconsistent and sometimes confusing reporting terminologies used for thyroid FNA throughout the world. The TBSRTC consists of 6 diagnostic categories, each associated with an implied risk of malignancy that translates directly into a clinical management algorithm. Since the publication of the TBSRTC cytology Atlas in January 2010, considerable experience has been gained regarding its application in cytology practice, clinical impact, and limitations. In conjunction with the International Academy of Cytology (IAC), an international panel composed of sixteen cytopathologists and an endocrinologist with special interest in thyroid cytology, including several co-authors of the 2010 TBSRTC Atlas, was created to: 1) analyze the current worldwide impact of TBSRTC, 2) report on the current state of TBSRTC based upon a review of the published literature, and 3) provide possible recommendations for a future update of TBSRTC. Herein, we summarize the panel's deliberations and key recommendations that our panel hopes will be useful during the preparation of the second edition of TBSRTC.
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Affiliation(s)
- Marc Pusztaszeri
- Department of Pathology, Geneva University Hospitals, Geneva, Switzerland
| | - Esther Diana Rossi
- Division of Anatomic Pathology and Histology, Agostino Gemelli School of Medicine, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Manon Auger
- Department of Pathology, McGill University and McGill University Health Center, Montreal, Quebec, Canada
| | - Zubair Baloch
- Department of Pathology and Laboratory Medicine, Hospital of the University of Pennsylvania, Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Justin Bishop
- Department of Pathology, Johns Hopkins School of Medicine, Baltimore, Maryland, USA
| | - Massimo Bongiovanni
- Institute of Pathology, Centre Hospittalier Universitaire Vaudois, Lausanne, Switzerland
| | - Ashish Chandra
- Department of Cellular Pathology, Guy's & St Thomas' NHS Foundation Trust, London, United Kingdom
| | | | - Guido Fadda
- Division of Anatomic Pathology and Histology, Agostino Gemelli School of Medicine, Università Cattolica del Sacro Cuore, Rome, Italy
| | | | - SoonWong Hong
- Department of Pathology, Gang Nam Severance Hospital, Yonsei University, Seoul, South Korea
| | - Kennichi Kakudo
- Department of Pathology, Nara Hospital, Kinki University Faculty of Medicine, Nara, Japan
| | - Jeffrey F Krane
- Department of Pathology, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Ritu Nayar
- Department of Pathology, Feinberg School of Medicine, Northwestern University and Northwestern Medicine, Chicago, Illinois, USA
| | - Sareh Parangi
- Department of Surgery, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Fernando Schmitt
- Department of Medicine, Laboratoire National de Santé, Dudelange, Luxembourg
| | - William C Faquin
- Department of Pathology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
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18
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Suzuki A, Hirokawa M, Higuchi M, Takada N, Yamao N, Kuma S, Miyauchi A. Differentiating between benign follicular nodules and follicular neoplasms in thyroid liquid-based cytology preparations. Diagn Cytopathol 2016; 44:659-64. [DOI: 10.1002/dc.23500] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Revised: 03/14/2016] [Accepted: 04/23/2016] [Indexed: 11/07/2022]
Affiliation(s)
- Ayana Suzuki
- Department of Laboratory Science; Kuma Hospital; Kobe Japan
| | | | - Miyoko Higuchi
- Department of Laboratory Science; Kuma Hospital; Kobe Japan
| | - Nami Takada
- Department of Laboratory Science; Kuma Hospital; Kobe Japan
| | - Naoki Yamao
- Department of Laboratory Science; Kuma Hospital; Kobe Japan
| | - Seiji Kuma
- Department of Diagnostic Pathology; Kuma Hospital; Kobe Japan
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19
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Bandoh N, Goto T, Akahane T, Ohnuki N, Yamaguchi T, Kamada H, Harabuchi Y, Tanaka S, Nishihara H. Diagnostic value of liquid-based cytology with fine needle aspiration specimens for cervical lymphadenopathy. Diagn Cytopathol 2016; 44:169-76. [PMID: 26748563 PMCID: PMC5066749 DOI: 10.1002/dc.23402] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Revised: 11/17/2015] [Accepted: 11/24/2016] [Indexed: 12/22/2022]
Abstract
Background Cervical lymphadenopathy is a symptom that is frequently seen among outpatients, and it is important to differentiate malignant lesions from reactive lymphoid hyperplasia. Fine needle aspiration (FNA) cytology has been widely used for the diagnosis of cervical lymphadenopathy. However, some limitations of the diagnostic accuracy using conventional smear (CS) cytology have been pointed out. The diagnostic value of liquid‐based cytology (LBC) with FNA specimens has not yet been fully proven. Methods Forty‐two patients with cervical lymphadenopathy who underwent FNA with CS cytology from 2007 to 2011 and 123 patients who underwent FNA with LBC utilizing LBCPREP2™ from 2011 to 2015 were studied. Diagnostic values were compared between the CS and the LBC groups. Results Of the total 165 patients representing the combined CS and LBC groups, 81 (49.1%) were diagnosed as benign lymph node and 84 (50.9%) were malignant diseases including 37 (22.4%) of metastatic carcinoma except for thyroid carcinoma, 30 (18.2%) of metastatic thyroid carcinoma, and 17 (10.3%) of malignant lymphoma. The overall statistical values including sensitivity, specificity, positive predictive value, negative predictive value, and accuracy of the CS were 75%, 100%, 100%, 78.9%, and 87.1%, respectively, whereas those values for LBC were 91.2%, 100%, 100%, 90.7%, and 95.3%, respectively. The sensitivity of LBC for malignant diseases tended to be higher than that of CS cytology (p = 0.081). Conclusion LBC with FNA specimens from cervical lymphadenopathy is a useful and reliable method for the diagnosis of malignant diseases, especially of metastatic carcinomas, due to its increased sensitivity compared with CS cytology. Diagn. Cytopathol. 2016;44:169–176. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Nobuyuki Bandoh
- Department of Otolaryngology-Head and Neck Surgery, Hokuto Hospital, Obihiro, Hokkaido, Japan
| | - Takashi Goto
- Department of Otolaryngology-Head and Neck Surgery, Hokuto Hospital, Obihiro, Hokkaido, Japan
| | - Toshiaki Akahane
- Department of Biology and Genetics, Laboratory of Cancer Medical Science, Hokuto Hospital, Obihiro, Hokkaido, Japan
| | - Natsumi Ohnuki
- Department of Biology and Genetics, Laboratory of Cancer Medical Science, Hokuto Hospital, Obihiro, Hokkaido, Japan
| | - Tomomi Yamaguchi
- Department of Biology and Genetics, Laboratory of Cancer Medical Science, Hokuto Hospital, Obihiro, Hokkaido, Japan
| | - Hajime Kamada
- Department of Neurosurgery, Hokuto Hospital, Obihiro, Hokkaido, Japan
| | - Yasuaki Harabuchi
- Department of Otolaryngology-Head and Neck Surgery, Asahikawa Medical University, Asahikawa, Hokkaido, Japan
| | - Shinya Tanaka
- Department of Pathology, Hokkaido University Graduate School of Medicine, Sapporo, Hokkaido, Japan
| | - Hiroshi Nishihara
- Department of Biology and Genetics, Laboratory of Cancer Medical Science, Hokuto Hospital, Obihiro, Hokkaido, Japan.,Department of Pathology, Hokkaido University Graduate School of Medicine, Sapporo, Hokkaido, Japan
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