MDCT showed enhanced focus on the contralateral breast. Targeted sonography showed a hypoechoic mass connecting to the adjacent ducts, the size of which was 5x2 mm. Sonography-guided vacuum-assisted core needle biopsy was performed to obtain a definitive diagnosis. The pathological diagnosis was hyperplasia.
Nakano et al. BMC Medical Imaging 2012 12:13 doi:10.1186/1471-2342-12-13