Frequency of cancer in patients with mammary ultrasound BI-RADS 4A

Frecuencia de cáncer en pacientes con ecografía mamaria BI-RADS 4A

The images are fundamental in the evaluation of mammary pathology. The American College of Radiology standardized the reports with the Breast Imaging Reporting and Data System (BI-RADS), which allows predicting according to morphological characteristics the probability of malignancy and the behavior to be followed. In the fourth edition of 2003 it was expanded to include the first ultrasound lexicon. The BI-RADS 4 and 5 correspond to suspicious lesions of malignancy and in 4 it was necessary to create three subgroups, of which 4A are lesions with low possibility of cancer (between 2% and 10%). As in the first publication we present the results of the positive predictive value of the mammographic BI-RADS 4A report, the objective of the present study is to determine the rate of malignancy in ultrasound 4A BI-RADS in the San José and Infantile University hospitals of San José de Bogotá DC, Colombia, including cases of mammographic BI-RADS 4A to contrast with the initial study. Four of 72 patients with BI-RADS 4A mammary ultrasound were diagnosed with breast cancer (5.5% PPV), all in solid nodules. Some could be classified as BI-RADS 3 by radiologists.

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