The impact of completion thyroidectomy followed by radioactive iodine ablation for patients with lymph node recurrence of papillary thyroid carcinoma

Surgery ◽  
2019 ◽  
Vol 166 (3) ◽  
pp. 342-348 ◽  
Author(s):  
Yoshiyuki Saito ◽  
Kenichi Matsuzu ◽  
Kiminori Sugino ◽  
Hiroshi Takami ◽  
Wataru Kitagawa ◽  
...  
2019 ◽  
Vol 25 (9) ◽  
pp. 887-898 ◽  
Author(s):  
Yuying Deng ◽  
Guoquan Zhu ◽  
Wei Ouyang ◽  
Liqin Pan ◽  
Huijuan Feng ◽  
...  

Objective: To evaluate the influence of the size of the metastatic focus in lymph nodes (LNs) on therapeutic response among papillary thyroid cancer (PTC) and cervical pathologically proven LN metastases (pN1). Methods: Patients with pN1 PTC who underwent total or near-total thyroidectomy, LN dissection, and postoperative radioactive iodine therapy in a university hospital between 2014 and 2016 were retrospectively reviewed. Furthermore, 554 patients were assigned to three groups according to the size of the metastatic focus in the LNs (≤0.2 cm, 0.2 to 1.0 cm, ≥1.0 cm). Structural incomplete response (SIR) was defined as structural or functional evidence of disease with any thyroglobulin level and/or anti-thyroglobulin antibodies. Results: Among the 554 patients, the proportion of patients with SIR was 2.5% (4/161) in group 1, 13.9% (37/267) in group 2, and 46.8% (59/126) in group 3 (χ2 = 100.073; P<.001). The optimal cutoff value of the size of the largest metastatic focus to the LNs was 0.536 cm to predict SIR with a corresponding sensitivity of 0.82, a specificity of 0.716, and an area under the curve of 0.821 (95% confidence interval [CI], 0.777 to 0.864; P<.001). Size of the largest metastatic focus to the LNs was confirmed to be an independent predictive factor for SIR (odds ratio, 9.650; 95% CI, 4.925 to 18.909; P<.001). Conclusion: In patients with pN1 PTC, there is an association between the size of the largest metastatic focus to the LNs and incomplete response. Abbreviations: AJCC = American Joint Committee on Cancer; ATA = American Thyroid Association; BIR = biochemical incomplete response; CI = confidence interval; ER = excellent response; ETE = extranodal extension; 18F-FDG = 18F-fluorodeoxyglucose; IDR = indeterminate response; LN = lymph node; OR = odds ratio; PET/CT = positron emission tomography/computed tomography; pN1 = pathologically proven LN metastases; PTC = papillary thyroid carcinoma; RAI = radioactive iodine; ROC = receiver operating characteristic; SIR = structural incomplete response; sTg = stimulated thyroglobulin; TgAb = anti-thyroglobulin antibody; TSH = thyroid-stimulating hormone


2020 ◽  
Vol 13 (10) ◽  
pp. e235967
Author(s):  
Sivakumar Pradeep ◽  
Naveen Hedne ◽  
Sivakumar Vidhyadharan ◽  
Santosham Rajiv

Thyroid cancer is the most common among endocrine cancers. Over 90% of all thyroid malignancies are differentiated thyroid carcinomas (DTC). However, only 2%–13% of DTC present with bone metastasis. Radioactive iodine ablation (RAI) is the treatment of choice for metastatic DTC. However, RAI therapy is not as effective in bone metastasis as it is in lung and visceral metastases. Only few cases of surgical management of bone metastasis in DTC have been reported in the literature. Here, we report a case of follicular variant of papillary thyroid carcinoma with sternal and lung metastases, for which sternal metastatectomy was performed.


2017 ◽  
Vol 2 (4) ◽  
pp. 5-10
Author(s):  
Alvaro Sanabria ◽  
Alejandro Román González

El carcinoma papilar de tiroides es un tumor frecuente en mujeres y el número de casos nuevos viene en crecimiento. La mayoría de estos casos de novo son tumores menores de 2 centímetros. Parte de la responsabilidad de este aumento es explicable por un uso mayor de ayudas diagnósticas. Esto ha permitido detectar el cáncer de tiroides temprano o clínicamente silente. En esta población, el manejo ha sido típicamente agresivo, incluyendo cirugías extensas (tiroidectomía total) seguidas por terapia con yodo radiactivo y supresión de TSH. Las próximas guías plantearán cuatro grandes modificaciones: 1. Estadificación dinámica del riesgo (respuesta completa, respuesta bioquímica incompleta, respuesta estructural incompleta e indeterminada) 2. Disminución de las indicaciones y de la dosis de ablación con yodo radiactivo, específicamente el uso de esta terapia debe estar ajustado al riesgo basal de recurrencia (bajo, intermedio, alto) del paciente y debe tenerse en cuenta el número de ganglios linfáticos afectados, el tamaño de las metástasis ganglionares, la histología y el tamaño del tumor. Una dosis de 30 mCi de 131yodo es igual de eficaz para negativizar la tiroglobulina que una dosis de 100 mCi. 3. Extensión de la cirugía (cirugía parcial en tumores menores de 4 cm con histología favorable) y 4. Terapia de supresión con levotiroxina con metas más laxas de TSH, dado el riesgo de osteoporosis y arritmias con una supresión exagerada de TSH, especialmente en la población de edad avanzada.Abstract Papillary thyroid carcinoma is a frequent cancer in women. An increase in the number of new cases has been detected in the last years. However, tumors smaller than 2 cms represent the largest sample in those new detected cancers. The cause of this increment is partially responsibility of an increased use of diagnostic aids such as ultrasound, even in asymptomatic patients. The management of these clinically silent tumors has been quite aggressive with extensive surgery (total thyroidectomy) followed by radioactive iodine therapy and TSH suppression. The next papillary thyroid carcinoma guidelines will address 4 important modifications: 1. Dynamic approach to risk stratification (Complete response, incomplete biochemical response, incomplete structural response and indeterminate response) 2. Decrease in the indication and dose of radioactive iodine. The use of this therapy must be adjusted to the basal risk of recurrence with consideration of the number of lymph node metastases, the size of the lymph node metastases, the histopathologic variant and the size of the primary tumor. A dose of 30mCi of 131I is as effective as a dose of 100 mCi for thyroid ablation. 3. Extension of the thyroidectomy (partial surgery in tumors smaller than 4 cms without unfavorable histopathology and 4. Higher TSH goal with levothyroxine suppression therapy. A strict TSH suppression has been associated with increased risk of osteoporosis and cardiac arrhythmias, especially in older population.


2021 ◽  
pp. 014556132110331
Author(s):  
Azmi Marouf ◽  
John C. Heaphy ◽  
Abdullah Mohammed Sindi ◽  
Ahlam Hadi Alamri ◽  
Firas R. Abi Sheffah ◽  
...  

Papillary thyroid carcinoma (PTC) is the most frequent thyroid malignancy. Intraparotid recurrence of PTC is, however, rare. Most parotid malignancies are either primary or metastatic from cancer outside the head and neck. We report a case of a 71-year-old man who had undergone lobectomy and completion thyroidectomy for PTC and presented to our clinic with an insidious intraparotid recurrence, for which he underwent a superficial parotidectomy and radioactive iodine therapy. We also present a review of the literature on similar cases. Intraparotid metastasis of PTC should be considered in the differential diagnosis of a parotid mass.


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