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- Title
Genetic and Clinical Features of Medullary Thyroid Carcinoma: The Experience of a Single Center in Costa Rica.
- Authors
Calvo, Javier; Torrealba, Gabriel; Sáenz, Adriana; Santamaría, Carlos; Morera, Estela; Alvarado, Silvia; Roa, Yolanda; González, Michelle
- Abstract
Background. Activating mutations in the RET gene leads to medullary thyroid carcinoma (MTC). Guidelines encourage performing RET analysis in subjects with hereditary and sporadic disease. Materials and Methods. Design. Observational, case series report study. Patients. Subjects diagnosed with MTC, with a thyroidectomy performed in a single center in Costa Rica between the years 2006 and 2015. Diagnosis and Follow-Up. Pre- and postoperative calcitonin, RET mutation, and neck ultrasound and tomography were obtained. Results. 21 subjects with histological diagnosis of MTC were followed up. The average age at diagnosis was 52.0 ± 15.7 years. The preoperative mean value of calcitonin was 1340 ± 665 pg/mL. Evidence of RET mutation was found in 26.3% of the patients, with only 2 of them grouped in the same kindred. We found statistically significant differences in mean ages between mutated (38.4 ± 20.2 y) versus nonmutated RET gene (54.6 ± 11.8 y, p=0.04). There were no significant differences regarding tumor size, metastases, and surgical reintervention. Conclusions. We report the results of RET mutation analysis in subjects with MTC in a single center of Costa Rica. The availability of this tool increases the probability of identifying familial MTC, with the benefit of detecting affected subjects and their relatives at an earlier age.
- Subjects
COSTA Rica; MEDULLARY thyroid carcinoma; THYROID cancer; MEDICAL centers; GENETIC mutation; THYROIDECTOMY; GENETICS
- Publication
Journal of Cancer Epidemiology, 2016, p1
- ISSN
1687-8558
- Publication type
Case Study
- DOI
10.1155/2016/9637173