What is breast attenuation defect?

Breast attenuation defect refers to a localized area within the breast tissue that appears less dense or has reduced attenuation on imaging studies, such as mammography or ultrasound. This phenomenon can indicate various conditions, including benign lesions or malignancies. The identification of a breast attenuation defect often necessitates further evaluation to determine its cause and significance, as it may require additional imaging or biopsy for diagnosis.