 The main goal of this project is to assess the ability of a recently developed Breast Microwave Imaging BMI system to detect abnormalities in a human breast. These trials will be performed by recruiting fourteen volunteers that have been diagnosed with breast abnormalities using x-ray mammography. The breast presenting the abnormality will be imaged using the BMI system in a controlled and comfortable environment. As this is a feasibility study of the technology, and has the main goal to evaluate the diagnostic accuracy of this technology. The data collected from this study will be used to: 1 evaluate the overall participant experience during the BMI imaging procedure, 2 optimize the design of the BMI imaging system both hardware and software, 3 open discussions with other medical professionals e.g. radiologists about the clinical feasibility of this emerging diagnostic imaging modality. 