Sensibilidad y especificidad de la biopsia por aspiración con aguja fina de lesiones benignas y malignas de glándula tiroides, determinación de falsos positivos y negativos

Abstract

OBJECTIVES: TO ESTABLISH THE SENSIBILITY AND SPECIFICITY OF NEEDLE BIOPSY ON BENIGN AND WICKED LESIONS OF THE THYROID GLAND AND CAUSES OF POSITIVE AND NEGATIVE FALSE READINGS. MATERIAL AND METHODS: FILES OF CYTOPATHOLOGY OF ALL PALPABLE THYROID NODULE FROM JANUARY OF 2003 TO DECEMBER OF 2004. RESULT: A SENSIBILITY OF 100% AND SPECIFICITY OF 98%, PPV 92%, WAS OBTAINED WITH A DIAGNOSTIC ACCURACY OF 99%. THIS IMPLIES THAT THE NUMBER OF FALSE POSITIVE AND NEGATIVE, IS VERY LOW AND THAT ON THE WHOLE, THE RESULTS ARE RELIABLE AND CAN BE USED IN THE TAKING OF DECISIONS. LESIONS ARE MORE FREQUENT IN WOMEN, BOTH BENIGN AND MALIGNANT.