Trends in breast cancer surgery at Brazil's public health system.

Background And Objectives: To analyze time trend patterns in Breast Cancer (BC) surgeries performed at Brazil's Public Health System, known as SUS from 2008 to 2014.

Methods: Ecological study of time series, based on the database system from SUS. Information on surgical procedures performed for BC treatment was collected.

Sonobreast: predicting individualized probabilities of malignancy in solid breast masses with echographic expression.

To create an individualized predictive tool for the risk of malignancy in solid breast masses, based on echographic and clinical characteristics. Research Ethics Committee approval and informed consent were obtained. This multi-center study included 1,403 solid breast masses prospectively.

A comparision of aspiration cytology and core needle biopsy according to tumor size of suspicious breast lesions.

The purpose of the study was to compare the accuracy of FNAC, CNB, and combined biopsy according to tumor size of suspicious breast lesions. FNAC and CNB were performed in 264 patients with suspicious breast lesions from August, 1997 to August, 2002. The procedures were guided by ultrasound and performed in the same session by the same operator.

Ultrasound-guided core needle biopsy of breast masses: How many cores are necessary to diagnose cancer?

Purpose: To investigate the number of cores required to diagnose breast cancer using ultrasound (US)-guided core needle biopsy.

Methods: US-guided core biopsy of 150 masses was performed in 144 patients. For each mass, 6 cores were obtained and analyzed separately.