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Lee Pak Hup K, Chai YY, Kaw YJ, Singh Gill R, Wang PF. Whispers in the Neck: Unmasking Cystic Metastases From Hidden Papillary Thyroid Carcinoma. Cureus 2024; 16:e57388. [PMID: 38694656 PMCID: PMC11062209 DOI: 10.7759/cureus.57388] [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] [Accepted: 03/24/2024] [Indexed: 05/04/2024] Open
Abstract
Papillary thyroid carcinoma is the most common thyroid malignancy and it frequently causes lymph node metastases. Approximately 50% of patients with papillary thyroid carcinoma have cervical lymph node metastases at the time of their initial presentation. Here we report a case of a young female who presented with a benign-appearing cystic neck mass, which was revealed to be metastases from occult papillary thyroid carcinoma. Completion thyroidectomy and neck dissection were done after the diagnosis of papillary thyroid carcinoma.
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Affiliation(s)
| | - Yan Yu Chai
- Otorhinolaryngology, Hospital Tengku Ampuan Rahimah, Klang, MYS
| | - Yi Jing Kaw
- Otorhinolaryngology, Hospital Tengku Ampuan Rahimah, Klang, MYS
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Ng JKM, Chan ABW, Li JJX. Colloid and pigmented histiocytes in lymph node aspirates as a clue to metastasis in patients with a history of papillary thyroid carcinoma. Diagn Cytopathol 2024; 52:22-29. [PMID: 37823320 DOI: 10.1002/dc.25236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 09/09/2023] [Accepted: 09/27/2023] [Indexed: 10/13/2023]
Abstract
INTRODUCTION Cystic changes, calcification, colloid material, and multinucleated giant cells are frequently associated with primary and metastatic papillary thyroid carcinoma (PTC). These features are sometimes present in negative lymph node fine-needle aspiration cytology (FNAC). This study aims to review nodal aspirates of PTC to elucidate the significance of these cytological features in aspirates without tumor cells. METHODS FNAC specimens from patients with PTC confirmed on thyroidectomy were reviewed for cystic changes, tumor-associated features, and lymphoid components. Histologic follow-up of the lymph nodes were retrieved for correlation. RESULTS A total of 113 aspirates were retrieved, of which 79 showed tumor cells on the FNAC specimen, and 95 were matched to a positive lymph node histology. At univariable analysis, calcification (n = 18/113, p = .044), colloid material (n = 40/113, p = .001), multinucleated giant cells (n = 29/113, p = .028), tumor cells (n = 79/133, p < .001), foamy histiocytes (n = 36/113, p = .002) and pigmented histiocytes (n = 62/113, p < .001) were associated with a positive histology. Presence of lymphoid fragments (n = 11/113, p < .001) and abundant background lymphocytes correlated with a negative histologic follow-up (n = 45/113, p = .005). In aspirates without tumor cells, multivariable analysis demonstrated colloid material (p < .001) and pigmented histiocytes (p = .003) to be independently predictive of metastatic PTC, whereas lymphoid fragments (p < .001) were independently associated with a negative histologic follow up. CONCLUSION Colloid material and pigmented histiocytes, and to lesser degree calcification and multinucleated giant cells, when seen in an aspirate without tumor cells, raises suspicion metastatic disease. On the contrary, the lymphoid fragments can be regarded as supportive evidence of adequate sampling and a true negative result.
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Affiliation(s)
- Joanna K M Ng
- Department of Anatomical and Cellular Pathology, Prince of Wales Hospital, The Chinese University of Hong Kong, New Territories, Hong Kong
| | - Amy B W Chan
- Department of Anatomical and Cellular Pathology, Prince of Wales Hospital, The Chinese University of Hong Kong, New Territories, Hong Kong
| | - Joshua J X Li
- Department of Anatomical and Cellular Pathology, Prince of Wales Hospital, The Chinese University of Hong Kong, New Territories, Hong Kong
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Gozgec E, Tatar A, Ogul H. Unexpected Presentation of Occult Papillary Thyroid Cancer; Retropharyngeal Cystic Lymph Node Metastasis Mimicking Abscess. EAR, NOSE & THROAT JOURNAL 2023:1455613231213493. [PMID: 37991206 DOI: 10.1177/01455613231213493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2023] Open
Affiliation(s)
- Elif Gozgec
- Department of Radiology, Ataturk University School of Medicine, Erzurum, Turkey
| | - Arzu Tatar
- Medical Faculty, Department of Otorhinolaryngology, Head, and Neck Surgery, Ataturk University, Erzurum, Turkey
| | - Hayri Ogul
- Department of Radiology, Duzce University, Duzce, Turkey
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Maybank AK, Curtis H, Topp T, Barnes PJ. Metastatic Mammary Carcinoma Presenting as a Large Cystic Axillary Mass: A Report of an Unusual Case. Int J Surg Pathol 2023; 31:1409-1413. [PMID: 36803091 DOI: 10.1177/10668969231152574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Abstract
The differential diagnosis of cystic axillary masses is broad and includes intranodal lesions. Cystic metastatic tumor deposits are rare, and have been reported in a few tumor types, most commonly in the head and neck region, but rarely described with metastatic mammary carcinoma. We report a case of a 61-year-old female who presented with a large right axillary mass. Imaging studies revealed a cystic axillary mass and ipsilateral breast mass. She was managed with breast conservation surgery and axillary dissection for invasive ductal carcinoma, no special type, Nottingham grade 2 (21 mm). One of nine lymph nodes contained a cystic nodal deposit (52 mm), which resembled a benign inclusion cyst. Oncotype DX recurrence score for the primary tumor was low (8), conferring a low risk of disease recurrence despite the large size of the nodal metastatic deposit. A cystic pattern of metastatic mammary carcinoma is rare and important to recognize for accurate staging and management decisions.
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Affiliation(s)
- Allison K Maybank
- Department of Pathology, Nova Scotia Health and Dalhousie University, Halifax, NS, Canada
| | - Heather Curtis
- Department of Diagnostic Radiology, Nova Scotia Health and Dalhousie University, Halifax, NS, Canada
| | - Trevor Topp
- Department of Surgery, Nova Scotia Health and Dalhousie University, Halifax, NS, Canada
| | - Penny J Barnes
- Department of Pathology, Nova Scotia Health and Dalhousie University, Halifax, NS, Canada
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Mikosiński P, Wołowiec-Korecka E, Pomorski L, Mikosińska A, Kaczka K, Mikosiński S. Cut-off Value for Thyroglobulin Washout Concentration in the Detection of Cervical Lymph Node Metastases in Patients after Thyroidectomy Due to Differentiated Thyroid Cancer. Biomedicines 2023; 11:2433. [PMID: 37760874 PMCID: PMC10525430 DOI: 10.3390/biomedicines11092433] [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: 07/09/2023] [Revised: 08/23/2023] [Accepted: 08/25/2023] [Indexed: 09/29/2023] Open
Abstract
The aim of this study was to establish the cut-off value for the thyroglobulin (Tg) concentration in washout fluid from fine needle aspiration biopsy (FNA-Tg) in the detection of cervical lymph node metastases of differentiated thyroid cancer (DTC). We evaluated the validity and clinical utility of fine needle aspiration biopsy cytology (FNAB-C), FNA-Tg, and the combined method in detecting DTC recurrences. The study included 82 patients after the total thyroidectomy and elective and, in some cases, also selective cervical lymphadenectomy. The majority of patients also underwent subsequent 131I ablative therapy. The patients presented with 1-6 enlarged and/or ultrasonographically suspicious cervical lymph nodes. One to four aspirates of each lymph node were taken, with a total of 297 samples. An FNA-Tg of 4.34 ng/mL was established as the cut-off value for detecting cervical lymph node DTC metastases for the IRMA Brahms DYNO test, Tg-S. FNAB-C is highly specific (91-99%) but not sensitive enough (53-69%) to be used as a standalone method in the detection of cervical lymph node metastases. FNA-Tg is more sensitive (91%), but caution should be taken when selecting patients for surgery with an FNA-Tg higher than the established cut-off value but lower than the serum Tg concentration. To select patients for lymphadenectomy, we recommend using the combined method (FNAB-C and FNA-Tg) with a sensitivity of 96% and specificity of up to 97%. More than one sample should be taken with each fine needle aspiration biopsy (FNAB) to obtain a representative set of samples.
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Affiliation(s)
- Paweł Mikosiński
- Department of General and Oncological Surgery, University Hospital and Education Centre, Medical University of Lodz, ul. Pomorska 251, 92-231 Lodz, Poland; (P.M.); (K.K.)
| | - Emilia Wołowiec-Korecka
- Institute of Materials Science and Engineering, Faculty of Mechanical Engineering, Lodz University of Technology, B. Stefanowskiego 1/15, 90-537 Lodz, Poland;
| | - Lech Pomorski
- Department of General and Oncological Surgery, Maria Sklodowska-Curie Memorial District Hospital, ul. Parzeczewska 35, 95-100 Zgierz, Poland;
| | - Agnieszka Mikosińska
- Faculty of Medicine, Medical University of Lodz, al. T. Kosciuszki 4, 90-419 Lodz, Poland;
| | - Krzysztof Kaczka
- Department of General and Oncological Surgery, University Hospital and Education Centre, Medical University of Lodz, ul. Pomorska 251, 92-231 Lodz, Poland; (P.M.); (K.K.)
| | - Sławomir Mikosiński
- Department of Nuclear Medicine and Oncological Endocrinology, Maria Sklodowska-Curie Memorial District Hospital, ul. Parzeczewska 35, 95-100 Zgierz, Poland
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Wang SR, Li QL, Tian F, Li J, Li WX, Chen M, Sang T, Cao CL, Shi LN. Diagnostic value of multiple diagnostic methods for lymph node metastases of papillary thyroid carcinoma: A systematic review and meta-analysis. Front Oncol 2022; 12:990603. [PMID: 36439514 PMCID: PMC9686443 DOI: 10.3389/fonc.2022.990603] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Accepted: 10/05/2022] [Indexed: 12/01/2023] Open
Abstract
OBJECTIVE This study compared the diagnostic value of various diagnostic methods for lymph node metastasis (LNM) of papillary thyroid carcinoma (PTC) through network meta-analysis. METHODS In this experiment, databases such as CNKI, Wanfang, PubMed, and Web of Science were retrieved according to the Cochrane database, Prisma, and NMAP command manual. A meta-analysis was performed using STATA 15.0, and the value of the surface under the cumulative ranking curve (SUCRA) was used to determine the most effective diagnostic method. Quality assessments were performed using the Cochrane Collaboration's risk of bias tool, and publication bias was assessed using Deeks' funnel plot. RESULTS A total of 38 articles with a total of 6285 patients were included. A total of 12 diagnostic methods were used to study patients with LNM of PTC. The results showed that 12 studies were direct comparisons and 8 studies were indirect comparisons. According to the comprehensive analysis of the area of SUCRA, US+CT(86.8) had the highest sensitivity, FNAC had the highest specificity (92.4) and true positive predictive value (89.4), and FNAC+FNA-Tg had higher negative predictive value (99.4) and accuracy (86.8). In the non-invasive method, US+CT had the highest sensitivity, and the sensitivity (SEN) was [OR=0.59, 95% confidence interval (CI): (0.30, 0.89]. Among the invasive methods, the combined application of FNAC+FNA-Tg had higher diagnostic performance. The sensitivity was [OR=0.62, 95% CI: (0.26, 0.98)], the specificity (SPE) was [OR=1.12, 95% CI: (0.59, 1.64)], the positive predictive value was [OR=0.98, 95% CI: (0.59, 1.37)], the negative predictive value was [OR=0.64, 95% CI (0.38, 0.90)], and the accuracy was [OR=0.71, 95% CI: (0.31, 1.12)]. CONCLUSION In the non-invasive method, the combined application of US+CT had good diagnostic performance, and in the invasive method, the combined application of FNAC+FNA-Tg had high diagnostic performance, and the above two methods were recommended.
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Affiliation(s)
- Si-Rui Wang
- Department of Ultrasound, the First Affiliated Hospital of Medical College, Shihezi University, Shihezi, Xinjiang, China
- NHC Key Laboratory of Prevention and Treatment of Central Asia High Incidence Diseases (First Affiliated Hospital, School of Medicine, Shihezi University), Shihezi, Xinjiang, China
| | - Qiao-Li Li
- Department of Ultrasound, the First Affiliated Hospital of Medical College, Shihezi University, Shihezi, Xinjiang, China
- NHC Key Laboratory of Prevention and Treatment of Central Asia High Incidence Diseases (First Affiliated Hospital, School of Medicine, Shihezi University), Shihezi, Xinjiang, China
| | - Feng Tian
- Department of Neurology, the First Affiliated Hospital of Medical College, Shihezi University, Shihezi, Xinjiang, China
| | - Jun Li
- Department of Ultrasound, the First Affiliated Hospital of Medical College, Shihezi University, Shihezi, Xinjiang, China
- NHC Key Laboratory of Prevention and Treatment of Central Asia High Incidence Diseases (First Affiliated Hospital, School of Medicine, Shihezi University), Shihezi, Xinjiang, China
| | - Wen-Xiao Li
- Department of Ultrasound, the First Affiliated Hospital of Medical College, Shihezi University, Shihezi, Xinjiang, China
- NHC Key Laboratory of Prevention and Treatment of Central Asia High Incidence Diseases (First Affiliated Hospital, School of Medicine, Shihezi University), Shihezi, Xinjiang, China
| | - Ming Chen
- Department of Ultrasound, the First Affiliated Hospital of Medical College, Shihezi University, Shihezi, Xinjiang, China
| | - Tian Sang
- Department of Ultrasound, the First Affiliated Hospital of Medical College, Shihezi University, Shihezi, Xinjiang, China
- NHC Key Laboratory of Prevention and Treatment of Central Asia High Incidence Diseases (First Affiliated Hospital, School of Medicine, Shihezi University), Shihezi, Xinjiang, China
| | - Chun-Li Cao
- Department of Ultrasound, the First Affiliated Hospital of Medical College, Shihezi University, Shihezi, Xinjiang, China
| | - Li-Nan Shi
- Department of Ultrasound, the First Affiliated Hospital of Medical College, Shihezi University, Shihezi, Xinjiang, China
- NHC Key Laboratory of Prevention and Treatment of Central Asia High Incidence Diseases (First Affiliated Hospital, School of Medicine, Shihezi University), Shihezi, Xinjiang, China
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Chung SR, Baek JH, Rho YH, Choi YJ, Sung TY, Song DE, Kim TY, Lee JH. Sonographic Diagnosis of Cervical Lymph Node Metastasis in Patients with Thyroid Cancer and Comparison of European and Korean Guidelines for Stratifying the Risk of Malignant Lymph Node. Korean J Radiol 2022; 23:1102-1111. [PMID: 36126955 PMCID: PMC9614289 DOI: 10.3348/kjr.2022.0358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 08/11/2022] [Accepted: 08/18/2022] [Indexed: 12/24/2022] Open
Abstract
OBJECTIVE To evaluate the ultrasonography (US) features for diagnosing metastasis in cervical lymph nodes (LNs) in patients with thyroid cancer and compare the US classification of risk of LN metastasis between European and Korean guidelines. MATERIALS AND METHODS From January 2014 to December 2018, US-guided fine-needle aspiration was performed on 836 LNs from 714 patients for the preoperative nodal staging of thyroid cancer. The US features of LNs were retrospectively reviewed for the following features: size, presence of hilum, margin, orientation, cystic change, punctate echogenic foci (PEF), large echogenic foci, eccentric cortical thickening, abnormal vascularity, and cortical hyperechogenicity. A multiple logistic regression analysis was performed to identify the independent US features for the diagnosis of metastatic LNs. The diagnostic performance of independent US features was subsequently evaluated. LNs were categorized according to the Korean Thyroid Imaging Reporting and Data System (K-TIRADS) and European Thyroid Association (ETA) guidelines, and the correlation between the two sets of classifications was assessed. RESULTS Absence of the hilum, presence of cystic changes, PEF, abnormal vascularity, and cortical hyperechogenicity were independent US features of metastatic LNs. Cystic changes, PEF, abnormal vascularity, and cortical hyperechogenicity showed high specificity (86.8%-99.6%). The absence of the hilum had the highest sensitivity yet low specificity (66.4%). When LNs were classified according to the ETA guidelines and K-TIRADS, they yielded similar categorizations of malignancy risks and were strongly correlated (Spearman coefficient, 0.9766 [95% confidence interval, 0.973-0.979]). According to the ETA guidelines, 9.8% (82/836) of LNs were classified as "not specified." CONCLUSION Absence of hilum, cystic changes, PEF, abnormal vascularity, and cortical hyperechogenicity were independent US features suggestive of metastatic LNs in thyroid cancer. Both K-TIRADS and the ETA guidelines provided similar risk stratification for metastatic LNs with a high correlation; however, the ETA guidelines failed to classify 9.8% of LNs into a specific risk stratum. These results may provide a basis for revising LN classification in future guidelines.
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Affiliation(s)
- Sae Rom Chung
- Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - Jung Hwan Baek
- Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - Yun Hwa Rho
- Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - Young Jun Choi
- Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - Tae-Yon Sung
- Department of Surgery, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - Dong Eun Song
- Department of Pathology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - Tae Yong Kim
- Department of Internal Medicine, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - Jeong Hyun Lee
- Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
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Han AY, Wang JN, Yu AC, Shiba TL. Secondary syphilis of the oropharynx and cervical lymph nodes: a case report. EAR, NOSE & THROAT JOURNAL 2022:1455613221095605. [PMID: 35710349 DOI: 10.1177/01455613221095605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Secondary syphilis rarely affects the head and neck including the oropharynx and cervical lymph nodes. These patients present with throat pain, cystic/necrotic lymphadenopathy, and mucosal swelling. Sometimes this constellation of symptoms can be mistaken for head and neck cancer. We report a case of an enlarging throat and painless cystic neck mass in a transgender woman in her forties who was initially suspected to have oropharyngeal squamous cell carcinoma. A subsequent workup revealed the presence of spirochetes without cellular atypia consistent with secondary syphilis. We include the ultrasonography images as well as an endoscopic photograph of the oropharyngeal manifestation in this report.
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Affiliation(s)
- Albert Y Han
- Department of Head and Neck Surgery, University of California Los Angeles, Los Angeles, CA, 90095, USA
| | - Jennifer N Wang
- Department of Head and Neck Surgery, University of California Los Angeles, Los Angeles, CA, 90095, USA
| | - Alice C Yu
- Department of Head and Neck Surgery, University of California Los Angeles, Los Angeles, CA, 90095, USA
| | - Travis L Shiba
- Department of Head and Neck Surgery, University of California Los Angeles, Los Angeles, CA, 90095, USA
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Chen Y, Lin S, Teng H, Yang C. Atypical histiocytoid cells in
fine‐needle
aspiration cytology of metastatic papillary thyroid carcinoma: A potential diagnostic pitfall. Diagn Cytopathol 2022; 50:133-140. [DOI: 10.1002/dc.24932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 12/25/2021] [Accepted: 01/03/2022] [Indexed: 11/11/2022]
Affiliation(s)
- Yun‐An Chen
- 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 Taichung Taiwan
| | - Hsin‐Yu Teng
- Department of Pathology and Laboratory Medicine Taichung Veterans General Hospital Taichung Taiwan
| | - Chi‐Shun Yang
- Department of Pathology and Laboratory Medicine Taichung Veterans General Hospital Taichung Taiwan
- Department of Medical Laboratory Science and Biotechnology Central Taiwan University of Science and Technology Taichung Taiwan
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10
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Hirokawa M, Higuchi M, Suzuki A, Hayashi T, Kuma S, Miyauchi A. Papillary Thyroid Carcinoma with Honeycomb-Like Growth: Clinicopathological Characteristics and Diagnostic Significance as a Novel Variant. Pathobiology 2021; 89:107-115. [PMID: 34823252 DOI: 10.1159/000520165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Accepted: 10/08/2021] [Indexed: 11/19/2022] Open
Abstract
INTRODUCTION We aimed to clarify the clinical and pathological characteristics of papillary thyroid carcinoma (PTC) with unique honeycomb-like growth (HLG) and discuss its diagnostic significance. METHODS Among the 12,745 PTCs that were resected and histologically diagnosed, 28 PTC cases with HLG components (0.2%) were included. RESULTS PTC-HLG was subclassified into pure (9 cases), which consisted of only HLG components, and mixed (19 cases), which consisted of conventional PTC and HLG components, types. HLG components were histologically characterized by (1) neoplastic cyst aggregation with intervening normal thyroid follicles, (2) the cyst wall composed of single-layered carcinoma cells, (3) low papillary growth, and (4) ball-like granulation tissues. Compared with the mixed type, the pure type occurred in older people (p < 0.05), had a smaller tumor size (p < 0.0001), was more interpreted as being benign by ultrasound (p < 0.05), and had a lower lymph node metastasis rate (p < 0.005). In the mixed type, 44.4% of conventional PTCs showed a Ki-67 labeling index of >5%. All and 10.5% of the mixed type showed lymph node and lung metastases, respectively. CONCLUSION The pure type could be a nonaggressive variant of PTCs with a unique honeycomb growth pattern and tended to be clinically interpreted as benign. The mixed type is pathogenetically different from the pure type and is slightly aggressive compared with conventional PTCs.
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Affiliation(s)
| | - Miyoko Higuchi
- Department of Diagnostic Pathology and Cytology, Kuma Hospital, Kobe, Japan
| | - Ayana Suzuki
- Department of Diagnostic Pathology and Cytology, 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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Cystic cervical lymph nodes of papillary thyroid carcinoma, tuberculosis and human papillomavirus positive oropharyngeal squamous cell carcinoma: utility of deep learning in their differentiation on CT. Am J Otolaryngol 2021; 42:103026. [PMID: 33862564 DOI: 10.1016/j.amjoto.2021.103026] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 03/30/2021] [Indexed: 12/22/2022]
Abstract
OBJECTIVES Cervical lymph nodes with internal cystic changes are seen with several pathologies, including papillary thyroid carcinoma (PTC), tuberculosis (TB), and HPV-positive oropharyngeal squamous cell carcinoma (HPV+OPSCC). Differentiating these lymph nodes is difficult in the absence of a known primary tumor or reliable medical history. In this study, we assessed the utility of deep learning in differentiating the pathologic lymph nodes of PTC, TB, and HPV+OPSCC on CT. METHODS A total of 173 lymph nodes (55 PTC, 58 TB, and 60 HPV+OPSCC) were selected based on pathology records and suspicious morphological features. These lymph nodes were divided into the training set (n = 131) and the test set (n = 42). In deep learning analysis, JPEG lymph node images were extracted from the CT slice that included the largest area of each node and fed into a deep learning training session to create a diagnostic model. Transfer learning was used with the deep learning model architecture of ResNet-101. Using the test set, the diagnostic performance of the deep learning model was compared against the histopathological diagnosis and to the diagnostic performances of two board-certified neuroradiologists. RESULTS Diagnostic accuracy of the deep learning model was 0.76 (=32/42), whereas those of Radiologist 1 and Radiologist 2 were 0.48 (=20/42) and 0.41 (=17/42), respectively. Deep learning derived diagnostic accuracy was significantly higher than both of the two neuroradiologists (P < 0.01, respectively). CONCLUSION Deep learning algorithm holds promise to become a useful diagnostic support tool in interpreting cervical lymphadenopathy.
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Chasen NN, Wang JR, Gan Q, Ahmed S. Imaging of Cervical Lymph Nodes in Thyroid Cancer: Ultrasound and Computed Tomography. Neuroimaging Clin N Am 2021; 31:313-326. [PMID: 34243866 DOI: 10.1016/j.nic.2021.04.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Sonographic evaluation of cervical lymph nodes in patients with thyroid malignancy is important both for preoperative staging and for post-treatment surveillance, and contrast-enhanced computed tomography plays a complementary role. Knowledge of anatomy and surgical approaches, combined with an understanding of the various imaging features that distinguish malignant from benign lymph nodes, allows for accurate staging, thereby enabling complete surgical initial resection.
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Affiliation(s)
- Noah Nathan Chasen
- Department of Neuroradiology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Unit 1482, Houston, TX 77030-4009, USA
| | - Jennifer Rui Wang
- Department of Head and Neck Surgery, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Unit 1445, Houston, TX 77030-4009, USA
| | - Qiong Gan
- Department of Anatomical Pathology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Unit 0085, Houston, TX 77030-4009, USA
| | - Salmaan Ahmed
- Department of Neuroradiology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Unit 1482, Houston, TX 77030-4009, USA.
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Onoue K, Fujima N, Andreu-Arasa VC, N Setty B, Qureshi MM, Sakai O. Cystic cervical lymph nodes of papillary thyroid carcinoma, tuberculosis and human papillomavirus positive oropharyngeal squamous cell carcinoma: Comparative CT analysis for their differentiation. Eur J Radiol 2020; 132:109310. [PMID: 33096501 DOI: 10.1016/j.ejrad.2020.109310] [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] [Received: 06/22/2020] [Revised: 09/02/2020] [Accepted: 09/20/2020] [Indexed: 12/20/2022]
Abstract
PURPOSE Cervical lymph nodes with cystic changes are an important finding seen with several pathologies including papillary thyroid carcinoma (PTC), tuberculosis (TB) and HPV-positive oropharyngeal squamous cell carcinoma (HPV + OPSCC). In the absence of known primary tumor or conclusive medical history, differentiating among these nodes is difficult. We compared the pathologic nodes of PTC, TB and HPV + OPSCC to identify imaging features useful for their differentiation. MATERIALS AND METHODS Fifty-five PTC, 58 TB and 51 HPV + OPSCC nodes were selected based on surgical pathology records and suspicious morphological features. These nodes were compared for morphological features: long axis length, nodal shape, nodal location, presence of cystic change, area of cystic change:area of entire node ratio, Hounsfield unit of the cystic component, degree of enhancement, enhancement pattern, presence of calcification, presence of perinodal infiltration, and presence of surrounding inflammatory changes. RESULTS PTC nodes formed calcifications more frequently and demonstrated greater enhancement (P < 0.01). TB nodes were characterized by their irregular shape (P < 0.05), irregular enhancement surrounding the cystic change (P < 0.01), greater frequencies of perinodal infiltration (P < 0.01) and surrounding inflammatory changes (P < 0.01). While no unique features were seen with HPV+OPSCC, they were characterized by the absence of those features that distinguished the other groups: these nodes tended to have smooth, circumscribed margins with no hyperenhancement, calcifications or inflammatory changes. PTC and TB nodes were more frequently identified in the lower neck, while HPV+OPSCC nodes were localized to the upper neck (P < 0.01). CONCLUSIONS PTC, TB and HPV + OPSCC lymph nodes can be differentiated based on their morphologies and locations.
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Affiliation(s)
- Keita Onoue
- Department of Radiology, Boston Medical Center, Boston University School of Medicine, One Boston Medical Center Place, Boston, MA, 02118, United States
| | - Noriyuki Fujima
- Department of Radiology, Boston Medical Center, Boston University School of Medicine, One Boston Medical Center Place, Boston, MA, 02118, United States; Research Center for Cooperative Projects, Hokkaido University Graduate School of Medicine, Kita 15, Nishi 7, Kita-ku, Sapporo, Hokkaido, 060-8638, Japan
| | - V Carlota Andreu-Arasa
- Department of Radiology, Boston Medical Center, Boston University School of Medicine, One Boston Medical Center Place, Boston, MA, 02118, United States
| | - Bindu N Setty
- Department of Radiology, Boston Medical Center, Boston University School of Medicine, One Boston Medical Center Place, Boston, MA, 02118, United States
| | - Muhammad Mustafa Qureshi
- Department of Radiology, Boston Medical Center, Boston University School of Medicine, One Boston Medical Center Place, Boston, MA, 02118, United States; Department of Radiation Oncology, Boston Medical Center, Boston University School of Medicine, One Boston Medical Center Place, Boston, MA, 02118, United States
| | - Osamu Sakai
- Department of Radiology, Boston Medical Center, Boston University School of Medicine, One Boston Medical Center Place, Boston, MA, 02118, United States; Department of Otolaryngology-Head and Neck Surgery, Boston Medical Center, Boston University School of Medicine, One Boston Medical Center Place, Boston, MA, 02118, United States; Department of Radiation Oncology, Boston Medical Center, Boston University School of Medicine, One Boston Medical Center Place, Boston, MA, 02118, United States.
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Wang J, Jiang X, Xiao G, Zhou W, Hu Y. Excellent diagnostic performance of FNA-Tg in detecting lymph nodes metastases from papillary thyroid cancer. Future Oncol 2020; 16:2735-2746. [PMID: 32812450 DOI: 10.2217/fon-2020-0213] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Background: Thyroglobulin washout of fine needle aspiration (FNA-Tg) has proved to be useful in detecting lymph node metastases from papillary thyroid cancer; however, the influences of thyroid gland, Hashimoto thyroiditis, serum thyroglobulin (Tg) and anti-TG antibody on the diagnostic performance of FNA-Tg are controversial. Patients & methods: We retrospectively collected the FNA-Tg results of 176 preoperative or postoperative patients (356 lymph nodes) who finally were diagnosed with papillary thyroid cancer. The diagnostic abilities of FNA-Tg were evaluated and compared under different circumstances. Results: The diagnostic performance of FNA-Tg was uninfluenced irrespective of the status of thyroid gland or serum anti-TG antibody. However, high serum Tg was positively correlated with FNA-Tg (Exp(B) = 1.57; 95% CI: 1.209-2.309; p = 0.001). Conclusion: FNA-Tg was an excellent diagnostic tool, but it should be interpreted with caution only if serum Tg is higher than 10 ng/ml.
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Affiliation(s)
- Jiahui Wang
- Department of Head & Neck Surgery, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, 310020, PR China
| | - Xianfeng Jiang
- Department of Head & Neck Surgery, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, 310020, PR China
| | - Guizhou Xiao
- Department of Head & Neck Surgery, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, 310020, PR China
| | - Weiping Zhou
- Department of Ultrasound, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, 310020, PR China
| | - Yan Hu
- Department of Pathology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, 310020, PR China
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Abdelgawad EA, Abu-samra MF, Abdelhay NM, Abdel-Azeem HM. B-mode ultrasound, color Doppler, and sonoelastography in differentiation between benign and malignant cervical lymph nodes with special emphasis on sonoelastography. THE EGYPTIAN JOURNAL OF RADIOLOGY AND NUCLEAR MEDICINE 2020. [DOI: 10.1186/s43055-020-00273-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Abstract
Background
Enlarged cervical lymph nodes are the most commonly encountered neck lumps. Ultrasonography is the most extensively used tool for classification of superficial lymph nodes due to its availability and low cost. Ultrasound (US) elastography refers to a non-invasive imaging technique that can describe tissue displacement (i.e., strain) or stiffness in response to a given force.
The aim of this study is to compare between B-mode sonography, color Doppler, and sonoelastography in assessment of enlarged deep cervical lymph nodes.
Results
The prevalence of benign lymph nodes was 26 out of 84 (31%). Lymphomatous lymph nodes were 22/84 (26.2%), while metastatic lymph nodes were 36/84 (42.8%). Color Doppler evaluation of nodal vascular pattern was of high sensitivity (91.7%), specificity (80.8%), and accuracy (88.6%) for differentiating metastatic and benign nodes (P value was < 0.001). There was a significant difference between elasticity scores of benign and malignant lymph nodes (P < 0.001). The most frequent score in the malignant group was 3 (21/27) (77.8%) while the most frequent score in the benign group was 2 (5/11) (45.5%). The mean strain ratio (strain index) for malignant lymph nodes (mean 3.2 ± 0.8) was significantly greater than that for benign lymph nodes (mean 1.1 ± 0.8).
Conclusion
Ultrasound elastography with its high sensitivity and specificity is a helpful improvement in US for the assessment of cervical lymph nodes, in which biopsies should be performed.
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The American Association of Endocrine Surgeons Guidelines for the Definitive Surgical Management of Thyroid Disease in Adults. Ann Surg 2020; 271:e21-e93. [PMID: 32079830 DOI: 10.1097/sla.0000000000003580] [Citation(s) in RCA: 238] [Impact Index Per Article: 59.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
OBJECTIVE To develop evidence-based recommendations for safe, effective, and appropriate thyroidectomy. BACKGROUND Surgical management of thyroid disease has evolved considerably over several decades leading to variability in rendered care. Over 100,000 thyroid operations are performed annually in the US. METHODS The medical literature from 1/1/1985 to 11/9/2018 was reviewed by a panel of 19 experts in thyroid disorders representing multiple disciplines. The authors used the best available evidence to construct surgical management recommendations. Levels of evidence were determined using the American College of Physicians grading system, and management recommendations were discussed to consensus. Members of the American Association of Endocrine Surgeons reviewed and commented on preliminary drafts of the content. RESULTS These clinical guidelines analyze the indications for thyroidectomy as well as its definitions, technique, morbidity, and outcomes. Specific topics include Pathogenesis and Epidemiology, Initial Evaluation, Imaging, Fine Needle Aspiration Biopsy Diagnosis, Molecular Testing, Indications, Extent and Outcomes of Surgery, Preoperative Care, Initial Thyroidectomy, Perioperative Tissue Diagnosis, Nodal Dissection, Concurrent Parathyroidectomy, Hyperthyroid Conditions, Goiter, Adjuncts and Approaches to Thyroidectomy, Laryngology, Familial Thyroid Cancer, Postoperative Care and Complications, Cancer Management, and Reoperation. CONCLUSIONS Evidence-based guidelines were created to assist clinicians in the optimal surgical management of thyroid disease.
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Kim JK, Kim MJ, Choi SH, Choi SM, Choi HR, Lee CR, Kang SW, Lee J, Jeong JJ, Nam KH, Chung WY. Cystic Lateral Lymph Node Metastases From Papillary Thyroid Cancer Patients. Laryngoscope 2020; 130:E976-E981. [PMID: 32275332 DOI: 10.1002/lary.28631] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 02/09/2020] [Accepted: 02/22/2020] [Indexed: 01/20/2023]
Abstract
OBJECTIVES/HYPOTHESIS Papillary thyroid carcinoma (PTC) tends to metastasize rather early to local lymph nodes (LNs). Incidences of cystic LN metastases is relatively rare compared with that of solid LN metastases. Few studies have attempted to assess the characteristics in these patients. This study aimed to compare the clinicopathologic characteristics and surgical outcomes between patients with cystic LN metastases and those with solid LN metastases. STUDY DESIGN Retrospective cohort study. METHODS We retrospectively reviewed the data of 1,028 patients with N1b PTC who underwent bilateral total thyroidectomy with central compartment neck dissection and modified radical neck dissection between January 2005 and September 2011. Of these, 136 (13.2%) had cystic LN metastases and 892 (86.8%) had solid LN metastases. Clinicopathologic characteristics and surgical outcomes were compared between these two patient groups. RESULTS The proportion of patients with thyroid tumor multifocality was relatively higher in the cystic node cohort (19.9% vs. 12.7%, P = .048). The number of total metastatic LNs and positive lateral LNs was slightly higher in the cystic node cohort (11.3 ± 8.9 vs. 9.7 ± 7.5, P = .029 and 6.9 ± 6.3 vs. 5.5 ± 4.6, P = .018, respectively). The proportion of patients with recurrence was higher in the cystic node cohort (14.0% vs. 3.0%, P < .001). Multivariate analysis indicated that cystic nodes were a significant risk factor for recurrence (hazard ratio: 5.265, 95% confidence interval: 2.898-9.563). CONCLUSIONS This study demonstrates that cystic lateral LN metastases are associated with aggressive tumor behavior in PTC patients. and that their presence is a significant independent prognostic factor for disease-free survival. LEVEL OF EVIDENCE 2b Laryngoscope, 2020.
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Affiliation(s)
- Jin Kyong Kim
- Department of Surgery, Severance Hospital, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, South Korea
| | - Min Jhi Kim
- Department of Surgery, Samsung Medical Center, Seoul, South Korea
| | - Sun Hyung Choi
- Department of Surgery, Severance Hospital, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, South Korea
| | - Soon Min Choi
- Department of Surgery, Severance Hospital, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, South Korea
| | - Hye Ryeon Choi
- Department of Surgery, Severance Hospital, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, South Korea
| | - Cho Rok Lee
- Department of Surgery, Severance Hospital, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, South Korea
| | - Sang-Wook Kang
- Department of Surgery, Severance Hospital, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, South Korea
| | - Jandee Lee
- Department of Surgery, Severance Hospital, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, South Korea
| | - Jong Ju Jeong
- Department of Surgery, Severance Hospital, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, South Korea
| | - Kee-Hyun Nam
- Department of Surgery, Severance Hospital, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, South Korea
| | - Woong Youn Chung
- Department of Surgery, Severance Hospital, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, South Korea
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18
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The Impact of Arterial Phase on the Detection of Cervical Lymph Node Metastasis From Papillary Thyroid Carcinoma: A Quantitative Evaluation on Multiphasic Computed Tomography. J Comput Assist Tomogr 2020; 44:262-268. [PMID: 32195806 DOI: 10.1097/rct.0000000000001005] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
OBJECTIVE The purpose of this study was to assess the diagnostic performance of multiphasic computed tomography (CT) in the discrimination of metastatic lymph nodes (LNs) of papillary thyroid cancer by using quantitative parameters. METHODS This study enrolled 272 pathologically proven metastatic and benign LNs. Multiphasic CT was utilized by using nonenhanced, arterial (25-second delay), and venous (80-second delay) phases. Mean tissue attenuation values (MAVs) of metastatic and benign LNs were measured, and normalized MAV (common carotid artery and paraspinal muscle) and wash-in and wash-out percentages were also calculated. RESULTS The arterial phase showed the highest diagnostic performance in differentiation (area under the curve ± standard error, 0.97 ± 0.02; 95% confidence interval, 0.94-1.0; P < 0.001). Cutoff values for MAVs, normalized MAVs, and wash-in and wash-out percentages to predict metastatic LNs were calculated as 109 HU, 0.33, 1.93, 122.5, and -5.6 (sensitivity: 93.4%, 93.3%, 90.4%, 94.1%, and 97.8%, and specificity: 99.3%, 90.4%, 98.5%, 92.6%, and 99.3%, respectively). CONCLUSIONS Early-phase enhanced CT and the use of quantitative parameters derived from multiphasic CT improve the detection of cervical lymph node metastasis from papillary thyroid cancer.
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19
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Dalal V, Kaur M, Bansal A. Papillary carcinoma thyroid with anastomosing channels: An unusual morphology. J Lab Physicians 2020; 9:140-142. [PMID: 28367032 PMCID: PMC5320879 DOI: 10.4103/0974-2727.199631] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Papillary thyroid carcinoma (PTC) is the most common thyroid malignancy, accounting for 70%–80% of all thyroid malignancies. It is biologically indolent and has an excellent prognosis. Variations in histopathologic patterns are known to influence prognosis and often result in a diagnostic dilemma. We report an unusual case of a 35-year-old female with papillary carcinoma of a thyroid isthmus showing anastomosing channels on histopathology, a distinctive pattern that has not been described in PTC. Similar to tumor cells, the lining cells of these channels were also positive for thyroid transcription factor 1, thyroglobulin, and cytokeratin-19 and negative for CD34 and CD31. The diagnosis of PTC should rely on nuclear morphology rather than architecture. Pathologists should be aware of different variants because some of these variants show aggressive behavior and poor outcome. The present report highlights the distinctive pattern of PTC, recognition of which is important to avoid any diagnostic pitfall.
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Affiliation(s)
- Varsha Dalal
- Department of Pathology, National Institute of Pathology, Safdarjang Hospital Campus, New Delhi, India
| | - Manveen Kaur
- Department of Pathology, National Institute of Pathology, Safdarjang Hospital Campus, New Delhi, India
| | - Anju Bansal
- Department of Pathology, National Institute of Pathology, Safdarjang Hospital Campus, New Delhi, India
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20
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Jiang HJ, Hsiao PJ. Clinical application of the ultrasound-guided fine needle aspiration for thyroglobulin measurement to diagnose lymph node metastasis from differentiated thyroid carcinoma-literature review. Kaohsiung J Med Sci 2020; 36:236-243. [PMID: 31909556 DOI: 10.1002/kjm2.12173] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2019] [Accepted: 12/01/2019] [Indexed: 11/06/2022] Open
Abstract
Papillary thyroid carcinoma (PTC) generally has a good prognosis, but disease recurs in 25% to 30% of PTC patients and significantly reduces the survival rate. Lymph node metastasis (LNM) is reported in 20% to 50% of PTC patients, mainly in the neck, and 20% originates from recurrence. LNM of papillary thyroid carcinoma are a plausible prognostic factor to determine disease recurrence. Currently, fine needle lymph node aspiration for cytology (LN-FN-cytology) is the best modality to diagnose LNM but is limited by diagnostic sensitivity and sample error. Fine needle lymph node aspiration for thyroglobulin measurement (LN-FNA-Tg) could offer a reliable and quantitative diagnostic method for LNM. The combination of LN-FNA-cytology and LN-FNA-Tg could achieve almost 100% diagnostic sensitivity and specificity for LNM. Both treatment guidelines of the American Thyroid Association and European Thyroid Association recommend LN-FNA-Tg to diagnose LNM after total thyroidectomy. Diagnostic accuracy of the LN-FNA-Tg depends on optimal equipment, scanning protocol, skill, and experience of operators. Normal saline is mainly used for aspiration needle wash-out and buffer solution. And radioimmunoassay or immunoradiometric assay are widely used for the LN-FNA-Tg measurement. So far, there is no consensus about the diagnostic threshold of LN-FNA-Tg for positive LNM, but high LN-FNA-Tg, especially higher than 10 ng/mL, strongly favors LNM.
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Affiliation(s)
- He-Jiun Jiang
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Pi-Jung Hsiao
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.,School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
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Xu Y, Wu D, Wu W, Jiang J, Xi C, Ye N, Wang Y, Xu X. Diagnostic value of cytology, thyroglobulin, and combination of them in fine-needle aspiration of metastatic lymph nodes in patients with differentiated thyroid cancer: A systematic review and network meta-analysis. Medicine (Baltimore) 2019; 98:e17859. [PMID: 31702649 PMCID: PMC6855606 DOI: 10.1097/md.0000000000017859] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND To investigate the diagnostic performance of cytology (fine-needle aspiration cytology [FNAC]), thyroglobulin (fine-needle aspiration thyroglobulin [FNA-Tg]), and combination of them in the washout of fine-needle aspiration for those patients who have suspicious metastatic lymph nodes of differentiated thyroid cancer. METHODS Databases, including PubMed, EMbase, Web of Science and Cochrane Library were searched up to June 2019. The quality assessment of diagnostic accuracy scale-2 was used to conduct quality assessments, and publication bias was evaluated using the Deeks funnel plot. STATA version 14.0 was used to perform the meta-analysis. RESULTS A total of 2257 patients with 2786 samples of suspicious metastatic lymph nodes of differentiated thyroid cancer were included in the meta-analysis. The results showed that the diagnostic value for detecting lymph node metastasis of differentiated thyroid cancer was as follows: combination of FNAC and FNA-Tg > FNA-Tg > FNAC. All differences of superiority among them are statistically significant. The sensitivity of the combination was 0.968 (95% confidence interval [CI]: 0.942-0.983), the specificity was 0.932 (95% CI: 0.856-0.969), the diagnostic score was 6.036 (95% CI: 4.892-7.181), the diagnostic odds ratio was 418.424 (95% CI: 133.167-1314.729), and the score of summary receiver operating characteristic was 0.99 (95% CI: 0.97-0.99). CONCLUSIONS The combination of FNAC and FNA-Tg is an excellent procedure in diagnosis of lymph nodes metastasis of patients with differentiated thyroid cancer, which should be highly recommended.
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Affiliation(s)
- Yixin Xu
- Department of General Surgery, Wujin Hospital Affiliated to Jiangsu University, Changzhou
| | - Dapeng Wu
- Department of Endoscopy, Jiangsu Provincial Hospital of Traditional Chinese Medicine, Nanjing
| | - Wenting Wu
- Department of Intensive Care Unit, Changzhou No.2 Hospital Affiliated to Nanjing Medical University
| | - Jian Jiang
- Department of Endocrine, Changzhou No.4 Hospital Affiliated to Suzhou University, Changzhou, Jiangsu, China
| | - Cheng Xi
- Department of General Surgery, Wujin Hospital Affiliated to Jiangsu University, Changzhou
| | - Nianyuan Ye
- Department of General Surgery, Wujin Hospital Affiliated to Jiangsu University, Changzhou
| | - Yibo Wang
- Department of General Surgery, Wujin Hospital Affiliated to Jiangsu University, Changzhou
| | - Xuezhong Xu
- Department of General Surgery, Wujin Hospital Affiliated to Jiangsu University, Changzhou
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Mortman KD, Law N, Hashemi-Zonouz T. Incidental Mediastinal Thyroid Cancer. Surg Case Rep 2019. [DOI: 10.31487/j.scr.2019.04.13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Cystic mediastinal masses are most commonly benign congenital lesions. Rarely, a cystic mediastinal mass will prove to be malignant. The patient, a 50-year-old woman who initially presented with uveitis, was incidentally found to have a right paratracheal opacity on chest X-ray (CXR). Chest computed tomography (CT) demonstrated a 5cm right paratracheal hypodense cystic mass. The patient underwent a right robotic-assisted thoracoscopic resection of the mediastinal mass. Final pathology revealed a 4.5cm mass consistent with metastatic papillary thyroid carcinoma (similar histology in 2 excised lymph nodes). The patient subsequently had a total thyroidectomy with central and right neck dissections.
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Geisbush TR, Dymon Z, Gabriel MS, Yedavalli V. A Multimodal and Pathological Analysis of a Renal Cell Carcinoma Metastasis to the Thyroid Gland 11 Years Post Nephrectomy. J Radiol Case Rep 2019; 13:1-9. [PMID: 31565176 PMCID: PMC6743643 DOI: 10.3941/jrcr.v13i4.3497] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
Thyroid lesions have a comprehensive differential diagnosis which include benign and malignant entities, such as metastases. However, metastases only account for a small percentage of thyroid lesions with renal cell carcinoma as the most common. Metastases to the thyroid pose a diagnostic dilemma as symptoms may not manifest for up to decades after removal of the renal cell carcinoma. Due to the nonspecific appearance on computed tomography and ultrasound, distinguishing metastases from primary thyroid malignancies is of the utmost importance for timely patient management. Our case demonstrates the importance of considering RCC metastases to the thyroid even years after nephrectomy to mitigate potential delays in diagnosis. We present the case of a 66-year-old male with a past medical history of renal cell carcinoma status post nephrectomy 11 years prior who demonstrated incidental thyroid abnormalities on positron emission tomography/computed tomography and ultrasound later confirmed as a metastasis of renal cell carcinoma.
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Affiliation(s)
- Thomas Rand Geisbush
- Chicago Medical School, Rosalind Franklin University of Medicine and Science, North Chicago, USA
| | - Zaneta Dymon
- Department of Radiology, Loyola University Medical Center, Illinois, USA
| | - Medhat Sam Gabriel
- Department of Radiology, Loyola University Medical Center, Illinois, USA
| | - Vivek Yedavalli
- Department of Neuroimaging and Neurointervention, Stanford Hospital, Palo Alto, USA
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Kawaguchi M, Kato H, Aoki M, Kuze B, Hara A, Matsuo M. CT and MR imaging findings of infection-free and benign second branchial cleft cysts. Radiol Med 2018; 124:199-205. [PMID: 30421386 DOI: 10.1007/s11547-018-0959-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Accepted: 11/02/2018] [Indexed: 12/19/2022]
Abstract
PURPOSE The present study aimed to assess CT and MR imaging findings of infection-free and benign second branchial cleft cysts (SBCCs). METHODS Eleven patients with histopathologically confirmed infection-free and benign SBCCs underwent preoperative contrast-enhanced CT (CECT) and/or MR imaging. We assessed qualitative (presence and extent of wall thickening, degree of contrast enhancement of the thickened wall on CECT images, and signal intensity of the thickened wall on T2-weighted images) and quantitative (maximum thickness of the thickened wall) imaging findings. RESULTS Eccentric and smooth wall thickening was observed in 11/11 (100%) patients. The wall thickening extent (percentage of the thickened wall to the circumference of the wall) was small (1%-25%) in 4/11 (36%), moderate (26%-50%) in 6/11 (54%), extensive (51%-75%) in 1/11 (9%), and diffuse (76%-100%) in 0/11 (0%) patients. Mild homogeneous enhancement of the thickened wall on CECT images was observed in 7/7 (100%) patients. The signal intensity of the thickened wall on T2-weighted images was isointense relative to that of normal lymph nodes in 7/8 (88%) and mildly hyperintense in 1/8 (12%) patient. The maximum thickness of the thickened walls ranged from 2 to 4 (mean 3.4) mm. CONCLUSIONS Infection-free and benign SBCCs are identifiable as cysts with eccentric and smooth wall thickening on CECT and MR images. The wall thickness was almost always less than half of the wall circumference, isointense relative to normal lymph nodes, and showed mild homogeneous enhancement.
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Affiliation(s)
- Masaya Kawaguchi
- Department of Radiology, Gifu University School of Medicine, 1-1 Yanagido, Gifu, 501-1194, Japan
| | - Hiroki Kato
- Department of Radiology, Gifu University School of Medicine, 1-1 Yanagido, Gifu, 501-1194, Japan.
| | - Mitsuhiro Aoki
- Department of Otolaryngology, Gifu University School of Medicine, Gifu, Japan
| | - Bunya Kuze
- Department of Otolaryngology, Gifu University School of Medicine, Gifu, Japan
| | - Akira Hara
- Department of Tumor Pathology, Gifu University School of Medicine, Gifu, Japan
| | - Masayuki Matsuo
- Department of Radiology, Gifu University School of Medicine, 1-1 Yanagido, Gifu, 501-1194, Japan
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Unusual Presentation of Follicular Dendritic Cell Sarcoma as a Cystic Neck Swelling. Case Rep Oncol Med 2018; 2018:4038250. [PMID: 30473898 PMCID: PMC6220415 DOI: 10.1155/2018/4038250] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Accepted: 10/09/2018] [Indexed: 01/05/2023] Open
Abstract
Follicular dendritic cell sarcoma is a very rare neoplasm that most commonly involves cervical lymph nodes and usually presents as a solid mass. Presentation as a cystic neck mass is very rare. Radiological studies and aspiration cytology are often unreliable, and diagnosis is usually made after thorough clinical and pathological examination along with immunohistochemical analysis. In this article, we report a case of a 42-year-old man who presented with right-sided neck swelling of a 2-month duration. Contrast-enhanced CT showed a cystic lesion in the right side of the neck inferomedial to parotid gland located between medial border of sternocleidomastoid muscle and internal jugular vein. Fine needle aspiration cytology was inconclusive. Patient underwent excision biopsy. Histological examination showed a solid-cystic tumor composed of spindle cells arranged in storiform pattern and showed a positive staining for CD23, CD35, and CD21 that confirmed the diagnosis of follicular dendritic cell sarcoma.
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Saadi R, LaRusso S, Vijay K, Goldenberg D. Elastography as a potential modality for screening cervical lymph nodes in patients with papillary thyroid cancer: A review of literature. EAR, NOSE & THROAT JOURNAL 2018; 97:31-39. [PMID: 29493721 DOI: 10.1177/0145561318097001-224] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Papillary thyroid cancer often presents with cervical lymph node involvement and has a high incidence of recurrence, which requires routine follow-up with ultrasound imaging. Elastography is a novel ultrasound technique that has been demonstrated to be effective clinically in detecting tissue pathology in areas such as the liver and breast. Preliminary data suggest that it may be effective in screening tissues in the neck for malignancy, specifically cervical lymph nodes. However, diagnostic criteria and elastographic techniques vary significantly among the studies we have reviewed, which all tend to focus on populations of patients with many different types of primary malignancies. Further research is required on the feasibility of creating standardized and reproducible clinical criteria in a specific patient population. To study the clinical utility of elastography in cervical lymph nodes, patients with diagnosed papillary thyroid carcinoma may serve as an ideal population because of their need for ultrasound surveillance and the propensity of papillary thyroid cancer to metastasize to and recur in cervical lymph nodes. We will review the limitations, techniques, and reported clinical utility of elastography on cervical lymph nodes and its potential as a screening modality for papillary thyroid cancer.
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Affiliation(s)
- Robert Saadi
- Division of Otolaryngology-Head and Neck Surgery, The Pennsylvania State University, College of Medicine, 500 University Dr., H091, Hershey, PA 17033-0850, USA
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Minkara A, Dhanda-Patil R, Patil Y. Syncope caused by a pleomorphic adenoma: Case report and literature review. EAR, NOSE & THROAT JOURNAL 2018; 97:E23-E26. [PMID: 29493727 DOI: 10.1177/0145561318097001-206] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Pleomorphic adenomas are considered the most common salivary gland tumors, although they rarely occur in the parapharyngeal space. To the best of our knowledge, this is the first case report of a parapharyngeal parotid pleomorphic adenoma causing syncope. A 57-year-old man was admitted for left-sided blurred vision, left-sided weakness, dysarthria, lightheadedness, and syncope. Upon his admission, an electrocardiogram showed sinus bradycardia, and computed tomography of the neck with contrast showed a large parapharyngeal mass involving the prestyloid compartment, leading to compression of blood flow through the internal carotid artery. The mass was biopsied via intraoral fine-needle aspiration, which revealed cytology consistent with pleomorphic adenoma. The mass was resected via a transcervical approach, and a total parotidectomy was performed. The patient's hypotensive and bradycardic episodes disappeared after surgery. Surgical pathology showed a benign pleomorphic adenoma with a hemorrhagic and necrotic center and without capsular invasion or malignant transformation.
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Affiliation(s)
- Anas Minkara
- Department of Otolaryngology Head and Neck Surgery, University of Cincinnati College of Medicine, PO Box 670528, 231 Albert Sabin Way, Cincinnati, OH 45267-0528, USA
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Kelil T, Keraliya AR, Howard SA, Krajewski KM, Braschi-Amirfarzan M, Hornick JL, Ramaiya NH, Tirumani SH. Current Concepts in the Molecular Genetics and Management of Thyroid Cancer: An Update for Radiologists. Radiographics 2016; 36:1478-1493. [DOI: 10.1148/rg.2016150206] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023]
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Li J, Zhang K, Liu X, Hao F, Liu Z, Wang Z. Cervical lymph node thyroglobulin measurement in washout of fine-needle aspirates for diagnosis of papillary thyroid cancer metastases. Br J Biomed Sci 2016; 73:79-83. [PMID: 27181176 DOI: 10.1080/09674845.2016.1173334] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
BACKGROUND Patients with papillary thyroid cancer (PTC) and enlarged cervical lymph nodes (CLNs) are usually assessed by fine-needle aspiration biopsy cytology (FNAB-C). Thyroglobulin (Tg) is frequently detected in washout of fine-needle aspirates (FNA) of these lymph nodes. The aim of this study was to evaluate the accuracy of the measurement of FNAB-Tg in the washout of FNAB in combination with FNAB-C to detect CLN metastases in PTC. METHODS We retrospectively evaluated 163 surgically proven CLNs. Ultrasound-guided FNAB-C and FNAB-Tg measurements were performed and the ultrasound features were evaluated. RESULTS The sensitivity, specificity and accuracy of FNAB-C, FNAB-Tg and FNAB-C/FNAB-Tg in diagnosis of metastatic CLNs were 85.7, 87.8 and 71.6%, were 80.5, 87 and 82.8% and were 97.1, 96.3 and 95.7%, respectively. The diagnostic sensitivity, specificity and accuracy of FNAB-C/FNAB-Tg for metastatic CLNs was significantly higher than that of FNAB-C or FNAB-Tg alone (p < 0.01). CONCLUSION Combined US-guided FNAB-C and FNAB-Tg can improve the accuracy for diagnosis of metastatic CLNs in patients with PTC.
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Affiliation(s)
- Jiansheng Li
- a Department of Diagnostic Ultrasound , The Affiliated Hospital of Qingdao University , Qingdao , China
| | - Kejun Zhang
- b Department of Thyroid surgery , The Affiliated Hospital of Qingdao University , Qingdao , China
| | - Xishuang Liu
- a Department of Diagnostic Ultrasound , The Affiliated Hospital of Qingdao University , Qingdao , China
| | - Fengyun Hao
- c Department of Pathology , The Affiliated Hospital of Qingdao University , Qingdao , China
| | - Ziming Liu
- d Department of Oncology , The Affiliated Hospital of Qingdao University , Qingdao , China
| | - Zhibin Wang
- a Department of Diagnostic Ultrasound , The Affiliated Hospital of Qingdao University , Qingdao , China
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Ultrasonography of thyroid nodules: a pictorial review. Insights Imaging 2015; 7:77-86. [PMID: 26611469 PMCID: PMC4729706 DOI: 10.1007/s13244-015-0446-5] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2015] [Revised: 10/15/2015] [Accepted: 10/21/2015] [Indexed: 12/27/2022] Open
Abstract
Abstract Thyroid nodules are a common occurrence in the general population, and these incidental thyroid nodules are often referred for ultrasound (US) evaluation. US provides a safe and fast method of examination. It is sensitive for the detection of thyroid nodules, and suspicious features can be used to guide further investigation/management decisions. However, given the financial burden on the health service and unnecessary anxiety for patients, it is unrealistic to biopsy every thyroid nodule to confirm diagnosis. The British Thyroid Association (BTA) has recently produced a US classification (U1–U5) of thyroid nodules to facilitate the decision-making process regarding the need to perform fine-needle aspiration cytology (FNAC) for suspicious cases. In this pictorial review, we provide a complete series of sonographic images to illustrate benign and malignant features of thyroid nodules according to the U1–5 classification. Specifically, we highlight morphologic characteristic of the nodule, including its echo signal in relation to its consistency, nodular size, number and contour. Additional diagnostic features such as halo, colloid, calcification and vascular patterns are also discussed in detail. The aim is to assist radiologists and clinicians in recognising sonographic patterns of benign, suspicious and malignant nodules based on U1–5 criteria, and in planning for further investigations. Main messages • Ultrasound is sensitive in identifying suspicious features, which require aspiration. • Whether nodules require aspiration should be based on sonographic features and clinical findings. • U1–5 classification of sonographic findings can help determine whether aspiration is necessary.
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Park KN, Kang KY, Hong HS, Jeong HS, Lee SW. Predictive Value of Estimated Tumor Volume Measured by Ultrasonography for Occult Central Lymph Node Metastasis in Papillary Thyroid Carcinoma. ULTRASOUND IN MEDICINE & BIOLOGY 2015; 41:2849-2854. [PMID: 26292989 DOI: 10.1016/j.ultrasmedbio.2015.02.018] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2014] [Revised: 01/29/2015] [Accepted: 02/24/2015] [Indexed: 06/04/2023]
Abstract
The clinical and prognostic value of tumor volume in various solid tumors has been investigated. However, there have been few studies on the clinical impact of tumor volume in papillary thyroid carcinoma (PTC). This study was performed to investigate the predictive value of estimated tumor volume measured by ultrasonography for occult central neck metastasis (OCNM) of PTC. A total of 264 patients with clinically node-negative PTC on ultrasonography and computed tomography who underwent total thyroidectomy in conjunction with at least ipsilateral prophylactic central neck dissection were enrolled in this study. Tumor volume was derived with the formula used to calculate ellipsoids from two orthogonal scans during 2-D ultrasonography at initial aspiration biopsy. We retrospectively evaluated demographic characteristics, pre-operative ultrasonographic features (tumor size, volume and multifocality) and pathologic results. The OCNM rate was 35.6%; estimated tumor volume was used to predict OCNM (p = 0.035). At 0.385 mL, sensitivity and specificity were 51.1% and 66.5%, and the area under the curve for OCNM detection was 0.610. In multivariate analysis, tumor volume, but not size, was an independent predictive factor for OCNM (odds ratio = 1.83, p = 0.029). The other factors were extrathyroidal extension (odds ratio = 2.39, p = 0.004) and male gender (odds ratio = 3.90, p < 0.001). The estimated tumor volume of PTC measured by ultrasonography could be a pre-operative predictor of OCNM.
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Affiliation(s)
- Ki Nam Park
- Department of Otolaryngology/Head and Neck Surgery, SoonChunHyang University College of Medicine, Bucheon, Korea
| | - Kyung Yoon Kang
- Department of Otolaryngology/Head and Neck Surgery, SoonChunHyang University College of Medicine, Bucheon, Korea
| | - Hyun Sook Hong
- Department of Radiology, SoonChunHyang University College of Medicine, Bucheon, Korea
| | - Han-Shin Jeong
- Department of Otolaryngology/Head and Neck Surgery, Sungkyunkwan University, Samsung Medical Center, Seoul, Korea
| | - Seung Won Lee
- Department of Otolaryngology/Head and Neck Surgery, SoonChunHyang University College of Medicine, Bucheon, Korea.
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Ryan N, Walkden G, Lazic D, Tierney P. Collision tumors of the thyroid: A case report and review of the literature. Head Neck 2015; 37:E125-9. [PMID: 25491252 DOI: 10.1002/hed.23936] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/05/2014] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Collision tumors of the thyroid are a rare pathology that present a diagnostic and treatment challenge. In this report, we present an interesting case and a review of the current literature as to inform management. METHODS AND RESULTS An 88-year-old woman presented with acute airway compromise and vocal cord paralysis. CT identified a thyroid mass and widespread metastasis. Histopathology identified the lesion as a collision tumor consisting of a squamous cell carcinoma (SCC) and papillary thyroid carcinoma. The patient was managed with surgery and palliative radiotherapy. However, she died from complications of a lower respiratory tract infection. We also present a review of the literature with 33 cases reviewed. CONCLUSION Management of collision tumors is complex because of the duality of the pathology. They should be managed in a multidisciplinary team setting and treatment should be patient specific. Generally, the most aggressive neoplasm should guide treatment. We recommend surgical management with adjunct therapy.
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Affiliation(s)
- Neil Ryan
- United Bristol Healthcare NHS Trust, ENT Bristol, United Kingdom
| | - Graham Walkden
- North Bristol NHS Trust, Surgery Bristol, United Kingdom
| | - Darko Lazic
- Great Western Hospital, Histopathology Swindon, United Kingdom
| | - Paul Tierney
- United Bristol Healthcare NHS Trust, ENT Bristol, United Kingdom
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Ashraf MJ, Raad H, Azarpira N, Khademi B, Shishegar M, Gandomi B, Hagpanah S, Adibi P. Fine-needle aspiration cytological diagnosis of neck masses. Acta Cytol 2015; 59:68-76. [PMID: 25676135 DOI: 10.1159/000371412] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2014] [Accepted: 12/05/2014] [Indexed: 11/19/2022]
Abstract
BACKGROUND Fine-needle aspiration (FNA) is a simple, safe, inexpensive, and acceptable method for diagnosing masses, especially at superficial areas. Therefore, we decided to evaluate the accuracy of FNA cytological diagnosis in nonthyroidal, nonsalivary gland neck masses and compare the results with histopathological diagnosis. MATERIALS AND METHODS In this retrospective study, all cases with FNA cytological diagnosis of nonthyroidal, nonsalivary gland neck masses from April 2009 to July 2013 were retrieved. The procedure was done by pathologists, and all cytological and histopathological slides of the existing 46 cases were reviewed by 3 pathologists. The values of sensitivity (SN), specificity (SP), positive predictive value (PPV), negative predictive value (NPV), and diagnostic accuracy were calculated. RESULTS SN, SP, PPV, NPV, and accuracy in this study were 79, 100, 100, 73, and 86%, respectively. We had 6 false-negative and no false-positive cases. CONCLUSION The FNA procedure is a reliable method as the first step for the diagnosis of nonthyroidal, nonsalivary gland neck masses. To increase the diagnostic value of cytology, careful examination of all cytological slides, repetition of the FNA procedure and good history taking are helpful.
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Yeh MW, Bauer AJ, Bernet VA, Ferris RL, Loevner LA, Mandel SJ, Orloff LA, Randolph GW, Steward DL. American Thyroid Association statement on preoperative imaging for thyroid cancer surgery. Thyroid 2015; 25:3-14. [PMID: 25188202 PMCID: PMC5248547 DOI: 10.1089/thy.2014.0096] [Citation(s) in RCA: 138] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND The success of surgery for thyroid cancer hinges on thorough and accurate preoperative imaging, which enables complete clearance of the primary tumor and affected lymph node compartments. This working group was charged by the Surgical Affairs Committee of the American Thyroid Association to examine the available literature and to review the most appropriate imaging studies for the planning of initial and revision surgery for thyroid cancer. SUMMARY Ultrasound remains the most important imaging modality in the evaluation of thyroid cancer, and should be used routinely to assess both the primary tumor and all associated cervical lymph node basins preoperatively. Positive lymph nodes may be distinguished from normal nodes based upon size, shape, echogenicity, hypervascularity, loss of hilar architecture, and the presence of calcifications. Ultrasound-guided fine-needle aspiration of suspicious lymph nodes may be useful in guiding the extent of surgery. Cross-sectional imaging (computed tomography with contrast or magnetic resonance imaging) may be considered in select circumstances to better characterize tumor invasion and bulky, inferiorly located, or posteriorly located lymph nodes, or when ultrasound expertise is not available. The above recommendations are applicable to both initial and revision surgery. Functional imaging with positron emission tomography (PET) or PET-CT may be helpful in cases of recurrent cancer with positive tumor markers and negative anatomic imaging.
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Affiliation(s)
- Michael W. Yeh
- Section of Endocrine Surgery, UCLA David Geffen School of Medicine, Los Angeles, California
| | - Andrew J. Bauer
- Division of Endocrinology and Diabetes: The Thyroid Center, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Victor A. Bernet
- Division of Endocrinology, Mayo School of Medicine, Jacksonville, Florida
| | - Robert L. Ferris
- University of Pittsburgh Cancer Institute, Pittsburgh, Pennsylvania
| | - Laurie A. Loevner
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Susan J. Mandel
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Lisa A. Orloff
- University of California, San Francisco, San Francisco, California
| | - Gregory W. Randolph
- Department of Otolaryngology, Massachusetts Eye and Ear Infirmary/Massachusetts General Hospital, Boston, Massachusetts
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Holmes BJ, Sokoll LJ, Li QK. Measurement of fine-needle aspiration thyroglobulin levels increases the detection of metastatic papillary thyroid carcinoma in cystic neck lesions. Cancer Cytopathol 2014; 122:521-6. [PMID: 24591483 DOI: 10.1002/cncy.21413] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2014] [Accepted: 01/22/2014] [Indexed: 11/06/2022]
Abstract
BACKGROUND Patients with previously resected papillary thyroid carcinoma (PTC) are monitored for disease recurrence/metastasis by ultrasound surveillance and fine-needle aspiration (FNA) cytology. However, accurate diagnosis in lesions with cystic degeneration may be difficult due to scant cellularity. In the current study, the authors evaluated thyroglobulin in FNA (Tg-FNA) for detecting metastatic and/or recurrent PTC in patients with cystic neck lesions after thyroidectomy. METHODS The pathology records were retrospectively searched for patients with previously resected PTC and subsequent Tg-FNA on a cystic neck mass. Tg-FNA was measured in needle rinses using a Tg assay. The ultrasound findings, Tg-FNA concentrations, and cytological and follow-up histological diagnoses were correlated. RESULTS A total of 21 FNA specimens of cystic lesions from 19 patients were identified. Of 7 cases with cytologic and subsequent histologic diagnoses of metastatic PTC, the median Tg-FNA level was 100,982 ng/mL. Of 8 cytologically benign cases, 7 cases had Tg-FNA levels < 0.2 ng/mL, and 1 aberrant case demonstrated elevated Tg-FNA of > 1000 ng/mL. For 6 cytologically equivocal cases, including 3 classified as atypical/suspicious for carcinoma, 2 classified as insufficient/acellular debris, and 1 classified as spindle cell neoplasm, 4 patients demonstrated markedly elevated Tg-FNA levels (> 150 ng/mL) with subsequent surgical confirmation of metastatic PTC, whereas 2 patients had Tg-FNA levels of < 0.2 ng/mL with negative follow-up. Using a cutoff value of 0.2 ng/mL, Tg-FNA demonstrated a sensitivity of 100% and specificity of 87.5%. CONCLUSIONS Tg-FNA is a useful ancillary test that improves the detection of cystic PTC metastases. Particularly in cytologically nondiagnostic cases, the measurement of Tg-FNA helps to distinguish benign from malignant cystic lesions.
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Affiliation(s)
- Brittany J Holmes
- Department of Pathology, The Johns Hopkins Medical Institutions, Baltimore, Maryland
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Crist HS, Evans JJ, Mani H, Saunders B, Fornadley J, Camacho F, Goldenberg D. Do black (dark) lymph-node metastases in papillary thyroid carcinoma suggest more advanced or aggressive disease? Thyroid 2013; 23:977-81. [PMID: 23343222 DOI: 10.1089/thy.2012.0321] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND In some patients, papillary thyroid carcinoma (PTC) lymph-node metastases are noted to be black (dark) in color at the time of surgical removal. The goal of this project was to determine histological, genetic, and clinical features that are associated with regional black PTC metastasis. METHODS Fifteen patients with black PTC metastases (black-PTC) were compared to a control cohort of 15 patients with nonblack PTC metastasis (nonblack PTC). Each sample was evaluated for the histological characteristics, BRAF V600E mutational status, and associated patient clinical data. RESULTS The degree of cystic degeneration (80% vs. 27%, p=0.004), percent hemosiderin deposition (20% vs. 6%, p=0.001), and presence of classical variant (100% vs. 67%, p=0.018) were significantly greater in black PTC than nonblack PTC (α=0.05). Other results were not significantly different. CONCLUSION This study demonstrates that black compared to nonblack metastases have a greater degree of cystic degeneration and hemosiderin deposition leading to discoloration, and a trend toward an increased incidence in BRAF V600E mutations. This study is the first of its kind to describe the clinical, pathological, and genetic features associated with black PTC lymph-node metastasis.
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Affiliation(s)
- Henry S Crist
- Department of Pathology, College of Medicine, The Pennsylvania State University, Hershey, Pennsylvania, USA
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Kim DW, Choo HJ, Lee YJ, Jung SJ, Eom JW, Ha TK. Sonographic features of cervical lymph nodes after thyroidectomy for papillary thyroid carcinoma. JOURNAL OF ULTRASOUND IN MEDICINE : OFFICIAL JOURNAL OF THE AMERICAN INSTITUTE OF ULTRASOUND IN MEDICINE 2013; 32:1173-1180. [PMID: 23804339 DOI: 10.7863/ultra.32.7.1173] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
OBJECTIVES Unlike the preoperative findings in patients with papillary thyroid carcinoma, the postoperative sonographic features of cervical lymph nodes have not been established. This study aimed to assess the sonographic features of metastatic lymph nodes after thyroidectomy for papillary thyroid carcinoma. METHODS The study population consisted of 104 consecutively registered patients who had undergone thyroidectomy for papillary thyroid carcinoma and underwent sonographically guided fine-needle aspiration of lymph nodes in the neck. The sonographic features of each lymph node were retrospectively evaluated by a single radiologist. The confirmation methods for the 115 lymph nodes included surgery (n = 35), measurement of thyroglobulin levels in the aspirates (n = 2), malignant cytologic analysis (n = 10), and benign cytologic analysis with sonographic follow-up over 12 months (n = 68). We determined the diagnostic indices of individual sonographic features for differentiating between metastatic and benign lymph nodes by comparing these features with the final diagnoses. RESULTS Of the 104 patients, 67 underwent at least 1 cycle of radioisotope therapy after thyroidectomy. The malignancy rate for the lymph nodes was 42.6% (49 of 115). A significant relationship was found between malignancy and the presence of an intranodal cystic component, intranodal microcalcifications, diffusely increased echogenicity, a microlobulated margin, a round shape, loss of echogenic hila, and mixed or central vascularity on color Doppler sonography (P < .05). CONCLUSIONS The sonographic features of metastatic cervical lymph nodes in postoperative patients with papillary thyroid carcinoma were similar to those in preoperative patients.
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Affiliation(s)
- Dong Wook Kim
- Department of Radiology, Busan Paik Hospital, Inje University College of Medicine, 633-165 Gaegeum-dong, Busanjin-gu, Busan 614-734, Korea.
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Chang YC, Lo WC, Lo CY, Liao LJ. Occult Papillary Thyroid Carcinoma Initially Presenting as Cervical Cystic Lymph Node Metastasis: Report of Two Cases. J Med Ultrasound 2013. [DOI: 10.1016/j.jmu.2013.04.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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Abstract
Thyroid cancer includes several neoplasms originating from the thyroid gland-from indolent and curable histologies of differentiated thyroid carcinoma to aggressive anaplastic thyroid carcinoma. Differentiation of thyroid nodules is problematic on CT and MR imaging unless there is evidence of extrathyroidal extension. Evaluation of regional lymph nodes is often performed clinically or with ultrasound. The retropharyngeal and mediastinal lymph nodes are better evaluated by CT and MR imaging. Nuclear scintigraphy is useful for staging and treatment of distant metastasis in differentiated thyroid carcinoma. PET may have a role in aggressive cancers. Accurate staging affects surgical management and subsequent therapy.
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Affiliation(s)
- Amit M Saindane
- Department of Radiology and Imaging Sciences, School of Medicine, Emory University, Atlanta, GA 30322, USA.
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Lesnik D, Cunnane ME, Zurakowski D, Acar GO, Ecevit C, Mace A, Kamani D, Randolph GW. Papillary thyroid carcinoma nodal surgery directed by a preoperative radiographic map utilizing CT scan and ultrasound in all primary and reoperative patients. Head Neck 2013; 36:191-202. [PMID: 23554058 DOI: 10.1002/hed.23277] [Citation(s) in RCA: 97] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/23/2013] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND To study the diagnostic accuracy of physical examination (PE), ultrasonography (US), contrastenhanced computed tomography (CT) and in preoperative detection of macroscopic nodal metastasis in primary/recurrent papillary thyroid carcinoma (PTC) patients to determine if the routine addition of CT would be beneficial in accurate preoperative lymph-node surgery planning. METHODS In a tertiary center prospective study, 162 PTC patients underwent preoperative lymph-node evaluation by PE, US, and CT. Sensitivity, specificity, positive/negative predictive value (PPV/NPV) of each nodal detection technique were calculated in central/lateral cervical compartments. The gold standard for diagnostic-accuracy was surgical pathology. RESULTS In patients undergoing primary (Group I)/revision (Group II) surgical treatment for PTC, combined US/CT yielded significantly higher sensitivity for macroscopic lymph-node detection in both lateral and central neck, most marked in Group I-central compartment. CONCLUSIONS Combined preoperative US/CT provides reliable, objective, preoperative macroscopic nodal metastasis map to design rational nodal surgery in primary/revision PTC patients.
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Affiliation(s)
- David Lesnik
- Division of Thyroid and Parathyroid Surgery, Massachusetts Eye and Ear Infirmary, Department of Otology and Laryngology, Harvard Medical School, Boston, Massachusetts
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Unusual presentation of cystic papillary thyroid carcinoma. Case Rep Endocrinol 2012; 2012:732715. [PMID: 23133761 PMCID: PMC3485764 DOI: 10.1155/2012/732715] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2012] [Accepted: 10/01/2012] [Indexed: 11/24/2022] Open
Abstract
Papillary thyroid carcinoma is the most common thyroid malignancy, accounting for 80% of all thyroid cancers. The most common presentation of thyroid cancer is an asymptomatic thyroid mass or a nodule. Usually as thyroid enlarges, it extends in to mediastinum. Papillary thyroid carcinoma presentation as multiple true cystic swelling extending from neck to anterior chest wall in subcutaneous plane is not present in the literature. We present a rare case of cystic papillary thyroid carcinoma which is presented as subcutaneous swelling with sinus formation.
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Wu LM, Gu HY, Qu XH, Zheng J, Zhang W, Yin Y, Xu JR. The accuracy of ultrasonography in the preoperative diagnosis of cervical lymph node metastasis in patients with papillary thyroid carcinoma: A meta-analysis. Eur J Radiol 2012; 81:1798-805. [DOI: 10.1016/j.ejrad.2011.04.028] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2011] [Accepted: 04/06/2011] [Indexed: 11/29/2022]
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Anil G, Hegde A, Chong FHV. Thyroid nodules: risk stratification for malignancy with ultrasound and guided biopsy. Cancer Imaging 2011; 11:209-23. [PMID: 22203727 PMCID: PMC3266587 DOI: 10.1102/1470-7330.2011.0030] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Replacing palpating fingers with an ultrasound (US) probe has resulted in an epidemic of thyroid nodules. Despite the high prevalence of thyroid nodules in the general population, thyroid malignancy is rare. Although no imaging modality can accurately predict the nature of every nodule, high-resolution US is the most sensitive, easily available and cost-effective diagnostic test available to detect thyroid nodules, measure their dimensions and identify their structure. The presence of calcifications, irregular spiculated outline, hypoechogenicity in a solid nodule, chaotic intranodular vascularity and an elongated shape are well-known US features of malignancy in thyroid nodules. Cervical lymph node metastasis and extrathyroidal extension of a thyroid nodule are highly specific for malignancy but seen infrequently. Spongiform nodules, purely or predominantly cystic nodules, nodules with well-defined hypoechoic halo and echogenic as well as isoechoic nodules are usually benign. None of the US characteristics have 100% accuracy in detecting or excluding malignancy. Fine-needle biopsy is currently the best triage test for pre-operative evaluation of a thyroid nodule. There is no significant difference in the risk for malignancy between palpable and non-palpable nodules and size is not a reliable indicator for their malignant potential. The best tool for risk stratification for malignancy in thyroid nodules is US and guided biopsy of nodules with suspicious imaging features. This is especially relevant in patients with multinodular goitre.
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Affiliation(s)
- Gopinathan Anil
- Department of Diagnostic Imaging, National University Hospital and Yong Loo Lin School of Medicine, National University of Singapore, Singapore.
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Guide de bonnes pratiques pour l’usage de l’échographie cervicale et des techniques écho-guidées dans la prise en charge des cancers thyroïdiens différenciés de souche vésiculaire. ANNALES D'ENDOCRINOLOGIE 2011; 72:H1-26. [DOI: 10.1016/s0003-4266(11)70001-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Johnson NA, LeBeau SO, Tublin ME. Imaging surveillance of differentiated thyroid cancer. Radiol Clin North Am 2011; 49:473-87, vi. [PMID: 21569906 DOI: 10.1016/j.rcl.2011.02.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Intensive imaging surveillance has resulted in the ability to detect small-volume, often clinically occult, residual or recurrent disease. For most patients with differentiated thyroid cancer (DTC), such findings are unlikely to have an impact on disease-specific survival but our ability to predict which patients are at greatest risk and should receive the most aggressive therapies is surpassed by our ability to detect recurrence. Thus, the optimal treatment and surveillance regimens will surely continue to evolve as our ability to predict tumor behavior and aggressiveness improves. This article explains the rationale underlying current surveillance strategies and the utility and implications of imaging findings that are critical for the appropriate care of patients with DTC.
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Affiliation(s)
- Nathan A Johnson
- Division of Abdominal Imaging, Department of Radiology, University of Pittsburgh School of Medicine, 200 Lothrop Street, Suite 3950 PST, Pittsburgh, PA 15213, USA.
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Leenhardt L, Borson-Chazot F, Calzada M, Carnaille B, Charrié A, Cochand-Priollet B, Cao CD, Leboulleux S, Le Clech G, Mansour G, Menegaux F, Monpeyssen H, Orgiazzi J, Rouxel A, Sadoul JL, Schlumberger M, Tramalloni J, Tranquart F, Wemeau JL. Good practice guide for cervical ultrasound scan and echo-guided techniques in treating differentiated thyroid cancer of vesicular origin. ANNALES D'ENDOCRINOLOGIE 2011; 72:173-97. [PMID: 21641577 DOI: 10.1016/j.ando.2011.04.001] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2010] [Accepted: 02/05/2010] [Indexed: 12/30/2022]
Abstract
Good practice guide for cervical ultrasound scan and echo-guided techniques in treating differentiated thyroid cancer of vesicular origin. American, European and French Recommendations for the treatment of differentiated vesicular thyroid cancer were recently published. Cervical ultrasound scanning is now considered a key examination in the follow-up of these cancers. This examination is noninvasive, easy to perform and to obtain, is not costly, but remains operator-dependent. To date, there are no recommendations published that assemble all the technical aspects, results, indications and the limits of this examination in the initial medical report and the follow-up of these cancers. In order to standardise the procedure and validate the quality of the examination, a workgroup made up of a panel of experts particularly involved in carrying out ultrasound scans was set up. The aim was to draw up a good practice guide for performing cervical ultrasound scans and echo-guided techniques in treating patients with differentiated thyroid cancer of vesicular origin. The main objectives are to: (a) standardise the procedure and reports, (b) define the criteria for establishing whether lesions identified during a cervical ultrasound scan are malignant or benign, (c) standardise the indications for carrying out cytological tests and an in situ assay of markers, (d) help doctors to select the patients who ought to receive a cervical ultrasound scan and or cytological tests, (e) discuss how frequently the examinations should be carried out depending on the risk of recurrence.
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Affiliation(s)
- L Leenhardt
- Department of Nuclear Medicine, Pitié Salpêtrière Hospital, Paris cedex, France.
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Lin YY, Hsu CH, Lee JC, Wang HW, Lin YS, Wang CH, Kao CH, Su WF, Chu YH. Head and neck cancers manifested as deep neck infection. Eur Arch Otorhinolaryngol 2011; 269:585-90. [PMID: 21547387 DOI: 10.1007/s00405-011-1622-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2010] [Accepted: 04/19/2011] [Indexed: 10/18/2022]
Abstract
The incidence of head and neck cancers in patients with an initial presentation of deep neck infection is unclear and may be underestimated. Thus, the aim of this study was to assess the incidence of head and neck cancers initially manifested as deep neck infection. Also, the possible risk factors and pathophysiology are discussed. This study was a retrospective medical chart review in a tertiary referral center. A total of 81 consecutive patients admitted with a diagnosis of deep neck infection over a 46-month period were analyzed. The demographic data, physical examinations, laboratory findings, radiographic studies, and pathology report were analyzed. Among the 81 deep neck infection patients, head and neck cancers were histologically demonstrated in four patients (4.9%) with the initial symptom of a painful neck mass. The incidence of head and neck cancer initially manifested as deep neck infection was found to increase in patients aged over 40 years (6.7%; 3/45 vs. 2.8%; 1/36). A detailed history of all patients with deep neck infection should be taken. Furthermore, endoscopic examination, thyroid examination and routine pathological examination should be performed, especially in those aged over 40. Also, careful explanation to the patient and his/her family about the possibility of underlying head and neck cancer (incidence 1-5%) may be needed. If the neck swelling diminishes, but does not disappear completely after full course of antibiotics, repeated fine needle aspiration, endoscopy, or image study should be considered.
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Affiliation(s)
- Yuan-Yung Lin
- Department of Otolaryngology, Head and Neck Surgery, Tri-Service General Hospital, National Defense Medical Center, 325, Sec. 2, Cheng-Kung Rd., Taipei 114, Taiwan, ROC
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Boedeker M, Kayser G, Offergeld C, Aschendorff A, Boedeker C. Große zystische Raumforderung zervikal rechts. HNO 2011; 60:234-7. [DOI: 10.1007/s00106-011-2295-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Modayil PC, Jacob A, Leslie A. Can leopards change their spots? Br J Radiol 2010; 83:991-2. [DOI: 10.1259/bjr/18427837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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Park CS, Kim SH, Jung SL, Kang BJ, Kim JY, Choi JJ, Sung MS, Yim HW, Jeong SH. Observer variability in the sonographic evaluation of thyroid nodules. JOURNAL OF CLINICAL ULTRASOUND : JCU 2010; 38:287-293. [PMID: 20544863 DOI: 10.1002/jcu.20689] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
OBJECTIVE Inter- and intraobserver variabilities in the description and diagnostic categorization of sonographic (US) features of thyroid nodules were evaluated. METHODS The current study was conducted on 72 malignant nodules and 61 benign nodules. The US findings for each thyroid nodule were analyzed twice at a 6-week interval by five radiologists. The analyses were in accordance with the guidelines proposed by the Thyroid Study Group of the Korean Society of Neuroradiology and Head and Neck Radiology (TSGKSNRHNR). Inter- and intraobserver variabilities were calculated using Cohen's kappa statistics. The sensitivity, specificity, positive-predictive value, and negative-predictive value in the assessment of the diagnostic accuracy using these guidelines were calculated. RESULT The interobserver agreement was fair to substantial for US features and categorization. Of the US features of the thyroid nodules, internal content (solid versus cystic) showed substantial agreement (k = 0.64). There was moderate agreement with regard to shape, echogenicity, calcification, and diagnostic categories (k = 0.42, 0.57, 0.55, and 0.55, respectively). There was fair agreement for margin, echotexture, and capsule invasion (k = 0.34, 0.26, and 0.32, respectively). With regard to intraobserver agreement, there was moderate to substantial agreement for all US features except for echotexture and capsule invasion, which showed fair agreement. In particular, there was moderate to almost perfect agreement for the diagnostic category. The sensitivity, specificity, positive-predictive value, and negative-predictive value were 65.3%-81.9%, 60.7%-68.9%, 69.7%-73.8%, and 66.6%-75.5%, respectively. CONCLUSION There were high degrees of inter- and intraobserver agreement using the "Guidelines for diagnostic thyroid ultrasonography," of the TSGKSNRHNR in the description and categorization of thyroid nodules.
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Affiliation(s)
- Chang Suk Park
- Department of Radiology, College of Medicine, The Catholic University of Korea, Seoul, 403-720, Korea
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