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Newman SK, Harries V, Wang L, McGill M, Ganly I, Girshman J, Tuttle RM. Invasion of a Recurrent Laryngeal Nerve from Small Well-Differentiated Papillary Thyroid Cancers: Patient Selection Implications for Active Surveillance. Thyroid 2022; 32:164-169. [PMID: 34714169 PMCID: PMC8861915 DOI: 10.1089/thy.2021.0310] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Background: The success of an active surveillance management approach to low-risk papillary thyroid cancer (PTC) is heavily dependent on proper patient selection. For example, primary tumors located in a subcapsular position immediately adjacent to the trachea or a recurrent laryngeal nerve (RLN) are considered to be inappropriate for active surveillance. Since preoperative imaging cannot reliably rule out extrathyroidal extension or reveal the full course of the RLN relative to the thyroid gland, it is important for clinicians to understand subcapsular tumor locations and minimum tumor sizes that are most likely to be associated with gross invasion of the RLNs. Methods: We assessed the medical records of 123 patients treated at Memorial Sloan Kettering Cancer Center (MSK) between 1986 and 2015 who had a primary PTC tumor demonstrating gross extrathyroidal extension to either the right or left RLN. Thirty patients with a primary tumor ≤2 cm in diameter demonstrating extrathyroidal extension into an RLN were included in the analysis. Results: Gross invasion of an RLN by tumors ≤2 cm is a rare event that was seen in only 0.8% (35/4334) of patients with PTC who underwent initial thyroid surgery at MSK between 1986 and 2015. Gross RLN invasion was associated with subcapsular PTC tumors located in either the right paratracheal area (60%), left paratracheal area (36.7%), or right lateral posterior lobe area not adjacent to the trachea (3.3%). Only a quarter of the patients had imaging findings suggestive of extrathyroidal extension and only 30% had clinically apparent vocal paresis/paralysis on preoperative examination. Invasion of the RLN was not observed for primary tumors <0.9 cm in diameter, regardless of tumor location. Conclusions: Well-differentiated PTC tumors ≥0.9 cm in maximal diameter that are located in the right paratracheal, left paratracheal, and right lateral posterior lobe subcapsular positions are usually not appropriate for active surveillance even in the absence of definitive evidence for nerve invasion on preoperative imaging or vocal cord examination. Patient selection for active surveillance management should take into account not only the size and growth rate of a tumor but also its location in relation to the expected course of RLNs.
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Affiliation(s)
- Samantha K. Newman
- Endocrinology Service, Division of Subspecialty Medicine, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Victoria Harries
- Head and Neck Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Laura Wang
- Head and Neck Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Marlena McGill
- Head and Neck Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Ian Ganly
- Head and Neck Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Jeffrey Girshman
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - R. Michael Tuttle
- Endocrinology Service, Division of Subspecialty Medicine, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York, USA
- Address correspondence to: R. Michael Tuttle, MD, Endocrinology Service, Division of Subspecialty Medicine, Department of Medicine, Memorial Sloan Kettering Cancer Center, 530 East 74th Street, New York, NY 10021, USA
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Vikneson K, Haniff T, Thwin M, Aniss A, Papachristos A, Sywak M, Glover A. Tumour volume is a predictor of lymphovascular invasion in differentiated small thyroid cancer. ENDOCRINE ONCOLOGY (BRISTOL, ENGLAND) 2022; 2:42-49. [PMID: 37435463 PMCID: PMC10259346 DOI: 10.1530/eo-22-0066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Accepted: 09/22/2022] [Indexed: 07/13/2023]
Abstract
Objectives For small thyroid cancers (≤2 cm), tumour volume may better predict aggressive disease, defined by lymphovascular invasion (LVI) than a traditional single measurement of diameter. We aimed to investigate the relationship between tumour diameter, volume and associated LVI. Methods Differentiated thyroid cancers (DTC) ≤ 2 cm surgically resected between 2007 and 2016 were analysed. Volume was calculated using the formula for an ellipsoid shape from pathological dimensions. A 'larger volume' cut-off was established by receiver operating characteristic (ROC) analysis using the presence of lateral cervical lymph node metastasis (N1b). Logistic regression was performed to compare the 'larger volume' cut-off to traditional measurements of diameter in the prediction. Results During the study period, 2405 DTCs were surgically treated and 523 met the inclusion criteria. The variance of tumour volume relative to diameter increased exponentially with increasing tumour size; the interquartile ranges for the volumes of 10, 15 and 20 mm diameter tumours were 126, 491 and 1225 mm3, respectively. ROC analysis using volume to predict N1b disease established an optimal volume cut-off of 350 mm3 (area under curve = 0.59, P = 0.02) as 'larger volume'. 'Larger volume' DTC was an independent predictor for LVI in multivariate analysis (odds ratio (OR) = 1.7, P = 0.02), whereas tumour diameter > 1 cm was not (OR = 1.5, P = 0.13). Both the volume > 350 mm3 and dimension > 1 cm were associated with greater than five lymph node metastasis and extrathyroidal extension. Conclusion In this study for small DTCs ≤ 2 cm, the volume of >350 mm3 was a better predictor of LVI than greatest dimension > 1 cm.
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Affiliation(s)
- Krishna Vikneson
- Department of Endocrine Surgery, Royal North Shore Hospital, Northern Sydney Local Health District, Sydney, New South Wales, Australia
- The Kinghorn Cancer Centre, Garvan Institute of Medical Research, St. Vincent’s Clinical School, Faculty of Medicine, University of New South Wales Sydney, Sydney, New South Wales, Australia
| | - Tariq Haniff
- Department of Endocrine Surgery, Royal North Shore Hospital, Northern Sydney Local Health District, Sydney, New South Wales, Australia
- The Kinghorn Cancer Centre, Garvan Institute of Medical Research, St. Vincent’s Clinical School, Faculty of Medicine, University of New South Wales Sydney, Sydney, New South Wales, Australia
| | - May Thwin
- Department of Endocrine Surgery, Royal North Shore Hospital, Northern Sydney Local Health District, Sydney, New South Wales, Australia
- Sydney Medical School, Faculty of Medicine and Health, University of Sydney, Sydney, New South Wales, Australia
| | - Ahmad Aniss
- Department of Endocrine Surgery, Royal North Shore Hospital, Northern Sydney Local Health District, Sydney, New South Wales, Australia
| | - Alex Papachristos
- Department of Endocrine Surgery, Royal North Shore Hospital, Northern Sydney Local Health District, Sydney, New South Wales, Australia
- Sydney Medical School, Faculty of Medicine and Health, University of Sydney, Sydney, New South Wales, Australia
| | - Mark Sywak
- Department of Endocrine Surgery, Royal North Shore Hospital, Northern Sydney Local Health District, Sydney, New South Wales, Australia
- Sydney Medical School, Faculty of Medicine and Health, University of Sydney, Sydney, New South Wales, Australia
| | - Anthony Glover
- Department of Endocrine Surgery, Royal North Shore Hospital, Northern Sydney Local Health District, Sydney, New South Wales, Australia
- The Kinghorn Cancer Centre, Garvan Institute of Medical Research, St. Vincent’s Clinical School, Faculty of Medicine, University of New South Wales Sydney, Sydney, New South Wales, Australia
- Sydney Medical School, Faculty of Medicine and Health, University of Sydney, Sydney, New South Wales, Australia
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Bernet VJ, Chindris AM. Update on the Evaluation of Thyroid Nodules. J Nucl Med 2021; 62:13S-19S. [PMID: 34230067 DOI: 10.2967/jnumed.120.246025] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Accepted: 09/29/2020] [Indexed: 12/18/2022] Open
Abstract
Thyroid nodules (TN) are prevalent in the general population and represent a common complaint in clinical practice. Most are asymptomatic and are associated with a 7%-15% risk of malignancy (1). Methods: PubMed and Medline were searched for articles with a focus on the epidemiology, diagnosis, and management of TN over the past 5 y. Results: The increase in frequency of imaging has led to a rise in the incidence of incidentally diagnosed TN. The initial evaluation of a TN includes assessing thyroid function, clinical risk factors, and neck imaging. Ultrasound remains the gold standard for assessing TN morphology, and biopsy is the standard method for determining whether a TN is benign. Recently published risk stratification systems using morphologic characteristics on ultrasonography have been effective in reducing the number of unnecessary biopsies. Advances in molecular testing have reduced the number of surgical procedures performed for diagnostic purposes on asymptomatic TN with indeterminate cytology. Scintigraphy is the first-line study for assessing a hyperfunctioning nodule. Many TN can be followed clinically or with serial ultrasound after the initial diagnosis. Surgical intervention is warranted when local symptoms are present, in patients with clinical risk factors, as well as in most situations with malignant cytology. Active surveillance is an option in cases of micropapillary thyroid cancer. Emerging nonsurgical approaches for treating TN include ethanol ablation for TN; sclerotherapy for thyroid cysts; and thermal techniques, such as radiofrequency ablation, laser ablation, microwaves, and high-intensity focused ultrasound. Conclusion: Most TN are benign and can be safely monitored. The indications for biopsy and frequency of imaging should be tailored on the basis of risk stratification. Treatment options should be individualized for each patient's particular situation. Active surveillance should be considered in certain cases of papillary microcarcinoma.
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Affiliation(s)
- Victor J Bernet
- Division of Endocrinology, Department of Medicine, Mayo Clinic in Florida, Jacksonville, Florida
| | - Ana-Maria Chindris
- Division of Endocrinology, Department of Medicine, Mayo Clinic in Florida, Jacksonville, Florida
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Hay ID, Lee RA, Kaggal S, Morris JC, Stan MN, Castro MR, Fatourechi V, Thompson GB, Charboneau JW, Reading CC. Long-Term Results of Treating With Ethanol Ablation 15 Adult Patients With cT1aN0 Papillary Thyroid Microcarcinoma. J Endocr Soc 2020; 4:bvaa135. [PMID: 33073159 PMCID: PMC7543935 DOI: 10.1210/jendso/bvaa135] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 09/11/2020] [Indexed: 12/13/2022] Open
Abstract
Background Currently acceptable management options for patients with adult papillary thyroid microcarcinoma (APTM) range from immediate surgery, either unilateral lobectomy or bilateral lobar resection, to active surveillance (AS). An alternative minimally invasive approach, originally employed for eliminating neck nodal metastases, may be ultrasound-guided percutaneous ethanol ablation (EA). Here we present our experience of definitively treating with EA 15 patients with APTM. Patients and Methods During 2010 through 2017, the 15 cT1aN0M0 patients selected for EA were aged 36 to 86 years (median, 45 years). Tumor volumes (n = 17), assessed by sonography, ranged from 25 to 375 mm3 (median, 109 mm3). Fourteen of 15 patients had 2 ethanol injections on successive days; total volume injected ranged from 0.45 to 1.80 cc (median, 1.1 cc). All ablated patients were followed with sonography and underwent recalculation of tumor volume and reassessment of tumor perfusion at each follow-up visit. Results The ablated patients have now been followed for 10 to 100 months (median, 64 months). There were no complications and no ablated patient developed postprocedure recurrent laryngeal nerve dysfunction. All 17 ablated tumors shrank (median 93%) and Doppler flow eliminated. Median tumor volume reduction in 9 identifiable avascular foci was 82% (range, 26%-93%). After EA, 8 tumors (47%) disappeared on sonography after a median of 10 months. During follow-up no new PTM foci and no nodal metastases have been identified. Conclusions Definitive treatment of APTM by EA is effective, safe, and inexpensive. Our results suggest that, for APTM patients who do not wish neck surgery and are uncomfortable with AS, EA represents a well-tolerated and minimally invasive outpatient management option.
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Affiliation(s)
- Ian D Hay
- Departments of Medicine, Mayo Clinic College of Medicine, Rochester, Minnesota, USA
| | - Robert A Lee
- Departments of Radiology, Mayo Clinic College of Medicine, Rochester, Minnesota, USA
| | - Suneetha Kaggal
- Departments of Health Sciences Research, Mayo Clinic College of Medicine, Rochester, Minnesota, USA
| | - John C Morris
- Departments of Medicine, Mayo Clinic College of Medicine, Rochester, Minnesota, USA
| | - Marius N Stan
- Departments of Medicine, Mayo Clinic College of Medicine, Rochester, Minnesota, USA
| | - M Regina Castro
- Departments of Medicine, Mayo Clinic College of Medicine, Rochester, Minnesota, USA
| | - Vahab Fatourechi
- Departments of Medicine, Mayo Clinic College of Medicine, Rochester, Minnesota, USA
| | - Geoffrey B Thompson
- Departments of Surgery, Mayo Clinic College of Medicine, Rochester, Minnesota, USA
| | - J William Charboneau
- Departments of Radiology, Mayo Clinic College of Medicine, Rochester, Minnesota, USA
| | - Carl C Reading
- Departments of Radiology, Mayo Clinic College of Medicine, Rochester, Minnesota, USA
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Stadler TM, Morand GB, Rupp NJ, Freiberger SN, Broglie MA. [Benefits of Molecular Analyses in Thyroid Carcinoma]. PRAXIS 2019; 108:535-540. [PMID: 31185849 DOI: 10.1024/1661-8157/a003240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Benefits of Molecular Analyses in Thyroid Carcinoma Abstract. The widespread access to neck ultrasonography has led to high detection rates of thyroid nodules, whose vast majority will remain clinically silent. In daily practice it is a challenge to filter out the thyroid nodules that require medical attention. This is usually achieved by a combination of sonomorphologic criteria and fine-needle aspiration cytology. In recent years, there is a trend toward deescalation in diagnostic and therapeutic measures for thyroid nodules. Some authors even advocate active surveillance instead of surgical approaches for very low-risk thyroid carcinoma. This approach requires an accurate assessment of the malignant potential of each thyroid nodule. As recent studies have allowed better understanding of molecular pathogenesis of thyroid cancer, the mutational profile of thyroid nodules has emerged as a new tool for assessment of thyroid nodules. Its exact clinical application in daily routine remains, however, unclear.
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Affiliation(s)
- Thomas M Stadler
- 1 Klinik für Ohren-, Nasen-, Hals- und Gesichtschirurgie, Universitätsspital Zürich
| | - Grégoire B Morand
- 1 Klinik für Ohren-, Nasen-, Hals- und Gesichtschirurgie, Universitätsspital Zürich
| | - Niels J Rupp
- 2 Institut für Pathologie und Molekularpathologie, Universitätsspital Zürich
| | - Sandra N Freiberger
- 2 Institut für Pathologie und Molekularpathologie, Universitätsspital Zürich
| | - Martina A Broglie
- 1 Klinik für Ohren-, Nasen-, Hals- und Gesichtschirurgie, Universitätsspital Zürich
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Kuo JH, McManus C, Graves CE, Madani A, Khokhar MT, Huang B, Lee JA. In brief. Curr Probl Surg 2019. [DOI: 10.1067/j.cpsurg.2018.12.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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7
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Kuo JH, McManus C, Graves CE, Madani A, Khokhar MT, Huang B, Lee JA. Updates in the management of thyroid nodules. Curr Probl Surg 2018; 56:103-127. [PMID: 30798796 DOI: 10.1067/j.cpsurg.2018.12.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Accepted: 12/18/2018] [Indexed: 12/17/2022]
Affiliation(s)
- Jennifer H Kuo
- Division of Endocrine Surgery, Columbia University, New York, NY.
| | | | - Claire E Graves
- Division of Endocrine Surgery, Columbia University, New York, NY
| | - Amin Madani
- Division of Endocrine Surgery, Columbia University, New York, NY
| | - Mamoona T Khokhar
- Division of Endocrine Surgery, Banner University Medical Center, Phoenix, AZ
| | - Bernice Huang
- Division of Endocrine Surgery, Columbia University, New York, NY
| | - James A Lee
- Division of Endocrine Surgery, Columbia University, New York, NY
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Xu B, Zhou NM, Cao WT, Gu SY. Comparative study on operative trauma between microwave ablation and surgical treatment for papillary thyroid microcarcinoma. World J Clin Cases 2018; 6:936-943. [PMID: 30568949 PMCID: PMC6288511 DOI: 10.12998/wjcc.v6.i15.936] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Revised: 10/25/2018] [Accepted: 11/07/2018] [Indexed: 02/05/2023] Open
Abstract
AIM To compare the effect and postoperative trauma of ultrasound-guided percutaneous microwave ablation and surgical resection in the treatment of papillary thyroid microcarcinoma (PTMC).
METHODS Eighty-seven patients with PTMC treated at Fudan University affiliated Shanghai Fifth People’s Hospital were enrolled as subjects. The patients were divided into a microwave ablation group (41 cases) and a surgical group (46 cases). The operative time, intraoperative blood loss, length of hospital stay, serum C-reactive protein (CRP), interleukin-6 (IL-6), tumor necrosis factor-α (TNF-α), thyroid-related hormonal changes, and complications 7 d and 30 d after surgery were observed.
RESULTS The operative time, intraoperative blood loss, and length of hospital stay in the surgical group were significantly higher than those in the microwave ablation group (P < 0.05). The levels of CRP, IL-6, and TNF-α in the surgical group were significantly higher than those in the microwave ablation group (P < 0.05). The free triiodothyronine (FT3) and free thyroxin (FT4) levels in the surgical group were significantly lower than those in the microwave ablation group (P < 0.05). However, the postoperative thyroid stimulating hormone (TSH) level was significantly higher than that in the microwave ablation group (P < 0.05). There were significant interactions between the FT3, FT4, and TSH 7 d and 30 d after operation and the treatment methods (P < 0.05). There was no significant difference in the complications between the two groups (P > 0.05).
CONCLUSION Microwave ablation for papillary microcarcinoma of the thyroid gland has less trauma to the body, quicker recovery, and no scars. It can effectively shorten the length of hospital stay and improve the quality of life of patients.
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Affiliation(s)
- Bin Xu
- Department of Ultrasound, Fudan University Affiliated Shanghai Fifth People’s Hospital, Shanghai 200240, China
| | - Ning-Ming Zhou
- Department of Ultrasound, Fudan University Affiliated Shanghai Fifth People’s Hospital, Shanghai 200240, China
| | - Wei-Tian Cao
- Department of Ultrasound, Fudan University Affiliated Shanghai Fifth People’s Hospital, Shanghai 200240, China
| | - Shu-Yan Gu
- Department of Ultrasound, Fudan University Affiliated Shanghai Fifth People’s Hospital, Shanghai 200240, China
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Editorial: Risk of disease progression during active surveillance of papillary thyroid cancer. Surgery 2017; 163:53-54. [PMID: 29122326 DOI: 10.1016/j.surg.2017.08.020] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Accepted: 08/09/2017] [Indexed: 01/03/2023]
Abstract
With the rapid rise in incidence of micropapillary carcinoma, there is considerable interest in active surveillance or deferred intervention in patients with incidental micropapillary carcinoma. The risk of disease progression is different based on the age of the patient. It is high in third and fourth decade, while very low in sixth and seventh decade. Appropriate selection and close surveillance is very critical, with active involvement of the multidisciplinary team.
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