Abstract

SANCHEZ, Gabriel; GUTIERREZ, Claudia; VALENZUELA, Álex  and  TOVAR, José Rafael. Differentiated carcinoma of the thyroid: findings after 16 years of multidisciplinary management. rev. colomb. cir. [online]. 2014, vol.29, n.2, pp.102-109. ISSN 2011-7582.

Introduction. The lack of a reliable preoperative classification system for determining the risk of a recurrence in differentiated thyroid cancer that has low mortality led us to conduct a descriptive study in order to identify histological, surgical and complementary therapeutic factors that could be used to generate hypotheses that could explain the differences between the results of our cases and what is reported in the literature. Materials and Methods. A descriptive study of the case series type was conducted, using information recorded in the medical records of individuals with a thyroid carcinoma treated by the group of specialists in head and neck surgery, nuclear medicine, endocrinology and pathology at a Level IV specialized clinic, in the city of Bogotá D.C., Colombia, Fundación Cardioinfantil, Instituto de Cardiología, from January 1997, through December 2012. Results. There were 501 cases of thyroid cancer, of which 469 (93.6%) corresponded to DTC. Gender distribution was predominantly feminine: 418 (83.4%). Subtotal thyroidectomy was carried out on 61 patients (13%), total thyroidectomy on 58 patients (12.4%). Seven histopathological factors were significant. Tumor recurrence was documented in 59 patients (12.6%) with a median recurrence-free time of 31 months (range 7-288). Survival observed at 5 and 10 years was 97.4% and 96.8%, respectively. Discussion. In according with our findings, tumors larger than 2cm, the high percentage of PTC aggressive histological variants, multicentricity, bilaterality, metastatic lymph nodes in the upper-anterior mediastenum, the lack of a reliable preoperative classification for establishing the risk of recurrence and/or mortality and our deficient health system that does not allow proper follow-up, constitute enough reasons for performing an aggressive surgical approach as the first line of treatment in differentiated thyroid cancer.

Keywords : thyroid neoplasms; carcinoma; papillary; adenocarcinoma; follicular; thyroidectomy; risk factors.

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