Revista Ciencias Biomédicas (Jan 2015)

MALIGNANCY RISK IN THE FINE NEEDLE ASPIRATION CYTOLOGY OF THE THYROID GLAND

  • Osorio-Covo Carlos G,
  • Grice-Reyes Juan M,
  • Herrera-Banquez Karen,
  • Caraballo-Gómez Cáceres Pedro,
  • Agresott-Marsiglia Rubén,
  • Redondo-De Oro Katherine,
  • Herrera-Sáenz Francisco

Journal volume & issue
Vol. 6, no. 1
pp. 22 – 28

Abstract

Read online

Introduction: a thyroid nodule could be the clinical presentation so much of a benign as malign lesion. The fine needle aspiration cytology is currently the most effective diagnostic test to define if medical or surgical approach is required. Objective: to identify the malignancy risk in the fine needle aspiration cytology in thyroid nodules, classified according to the Bethesda system for the cytopathological report. Methods: a retrospective study was carried out with the review of clinical records of 790 patients who attended between January, 2007 and December, 2013 to the E.S.E Hospital Universitario del Caribe, Cartagena, Colombia, with a thyroid pathology. 161 clinical records of patients who received fine needle aspiration cytology and subsequently thyroid surgery were selected. They had to have available the cytopathological reports and the result of the tissue studied after the surgery. The cytology was classified according to the category of cytological diagnosis according to the Bethesda system for the cytopathological report of the lesions of the thyroid gland. A malignancy risk was estimated for each level of classification of the cytology. Results: the average age was 43.9 ± 13.7 years. The obtained results in the fine needle aspiration cytology were: 12 (7.4%) without diagnosis, 109 (67.70%) were benign, 2 (1.2%) indicated follicular atypia of indeterminate significance, 21 (13.0%) were suspicious of follicular neoplasm, 9 (5.5%) were suspected of malignancy and 8 (4.9%) were malignant. The malignancy risk for each one of the categories of cytological diagnosis was: 0.0% non-diagnostic, 11.0% and 5.5% benign, including and excluding the papillary microcarcinoma respectfully, 100% follicular atypia of indeterminate significance, 14.2% with suspicious of follicular neoplasm, 77.7% with suspicious of malignancy and 75% malignant. Conclusion: the malignancy risk attributable to the categorized aspirations, in a retrospective way, according to the Bethesda system for the cytopathological report of the lesions of thyroid gland were similar to those previously described. Rev.cienc. biomed. 2015;6(1):22-28 KEYWORDS Thyroid nodule; Cytology; Biopsy needle; Thyroid neoplasms.

Keywords