Modern use of post-operative radioactive iodine (RAI) treatment for differentiated thyroid cancer (DTC) should be implemented in line with patients’ risk stratification. Although beneficial effects of radioiodine are undisputed in high-risk patients, controversy remains in intermediate-risk and some low-risk patients. Since the last consensus on post-surgical use of RAI in DTC patients, new retrospective data and results of prospective randomized trials have been published, which have allowed the development of a new European Thyroid Association (ETA) statement for the indications of post-surgical RAI therapy in DTC. Questions about which patients are candidates for RAI therapy, which activities of RAI can be used, and which modalities of pre-treatment patient preparation should be used are addressed in the present guidelines.
Furio Pacini, Dagmar Fuhrer, Rossella Elisei, Daria Handkiewicz-Junak, Sophie Leboulleux, Markus Luster, Martin Schlumberger, and Johannes W Smit
Camille Buffet, Sophie Leboulleux, Françoise Kraeber-Bodéré, Caroline Bodet-Milin, Laure Cabanes, Anthony Dohan, Pascal Leprince, Martin Schlumberger, Olivier Huillard, and Lionel Groussin
Background: Cardiac metastases from thyroid cancers are uncommon with a poor prognosis. There is a lack of long-term follow-up studies. Cases: We report 2 cases of cardiac metastasis from medullary thyroid cancer (MTC). Both patients presented limited metastatic disease apart from a cardiac metastasis. The initial diagnosis was challenging and was facilitated by functional imaging with an immuno-PET-CT using an anti-CEA bispecific antibody and a <sup>68</sup>Ga-labeled peptide. Both patients were treated with the multitarget kinase inhibitor vandetanib with prolonged stability. The first patient was alive at the last follow-up, 14 years after the diagnosis of cardiac metastasis. The second patient required surgical excision of the cardiac mass because of disease progression under vandetanib. Conclusion: These cases illustrate long-term survival and effectiveness of clinical management of 2 patients who developed cardiac metastases from MTC, in the current era of personalized medicine with targeted therapy.
Constance Xhaard, Juan J. Lence-Anta, Yan Ren, Françoise Borson-Chazot, Geneviève Sassolas, Claire Schvartz, Marc Colonna, Brigitte Lacour, Arlette Danzon, Michel Velten, Enora Clero, Stéphane Maillard, Emilie Marrer, Laurent Bailly, Eugènia Mariné Barjoan, Martin Schlumberger, Jacques Orgiazzi, Elisabeth Adjadj, Celia M. Pereda, Silvia Turcios, Milagros Velasco, Mae Chappe, Idalmis Infante, Marlene Bustillo, Anabel García, Sirced Salazar, Regla Rodriguez, Mohamed Amine Benadjaoud, Rosa M. Ortiz, Carole Rubino, and Florent de Vathaire
Purpose: Physical activity has been hypothesized to influence cancer occurrence through several mechanisms. To date, its relation with thyroid cancer risk has been examined in relatively few studies. We pooled 2 case-control studies conducted in Cuba and Eastern France to assess the relationship between self-reported practice of recreational physical activity since childhood and thyroid cancer risk. Methods: This pooled study included 1,008 cases of differentiated thyroid cancer (DTC) matched with 1,088 controls (age range 9-35 and 17-60 years in the French and Cuban studies, respectively). Risk factors associated with the practice of recreational physical activity were estimated using OR and 95% CI. Logistic regressions were stratified by age class, country, and gender and were adjusted for ethnic group, level of education, number of pregnancies for women, height, BMI, and smoking status. Results: Overall, the risk of thyroid cancer was slightly reduced among subjects who reported recreational physical activity (OR = 0.8; 95% CI 0.5-1.0). The weekly frequency (i.e. h/week) seems to be more relevant than the duration (years). Conclusion: Long-term recreational physical activity, practiced since childhood, may reduce the DTC risk. However, the mechanisms whereby the DTC risk decreases are not yet entirely clear.