Resumen

FERNANDEZ SANCHEZ, J. Clasificación TI-RADS de los nódulos tiroideos en base a una escala de puntuación modificada con respecto a los criterios ecográficos de malignidad. Rev. argent. radiol. [online]. 2014, vol.78, n.3, pp.138-148. ISSN 1852-9992.  http://dx.doi.org/10.1016/j.rard.2014.07.015.

Objective: The classification system of the thyroid nodules (TN) TI-RADS (Thyroid Imaging Reporting and Data System) proposed by Horvath et al. in 2009 is rarely used. The aim of this study was to evaluate a modification of the score regarding the ultrasound criteria for malignancy in order to obtain a better application of this classification in daily practice. Materials and methods: 3650 TN were classified according a score of possible malignancy. According published studies and guidelines of several medical international societies, suspicious US criteria for malignancy are defined. Each of them gets one point for the final score of malignant probability of the TN. If suspected cervical lymph nodes are detected, one point is added. Results: The score in all benign (TI-RADS 2) or probably benign (TI-RADS 3) TN was zero. In the TI-RADS 3 group only 2.2% of the TN were malignant. The score of TI-RADS 4a, 4b and 4c was one, two and three to four points, respectively. Here the malignant rate was 9.5%, 48% and 85%, respectively. TI-RADS 5 TN had a score of five or more points with a malignancy of 100% in this study. Conclusion: A TI-RADS classification based on a score according the number of suspicious US criteria defined for malignancy can be applied in daily practice.

Palabras clave : Thyroid nodule; TI-RADS; Ultrasound; Thyroid gammagraphy.

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