The purpose of this systematic review of the scientific-medical literature was to survey the range of quality measures assessing the quality of breast cancer care in women, and to characterize specific parameters potentially affecting their suitability for wider use. Specific emphasis was placed on diagnosis, treatment (including supportive care), followup, and documentation of this care. Screening and prevention fell outside the review scope. Quality measures quantify adherence to standards of care, or quality indicators (e.g., percentage of women receiving radiotherapy after breast-conserving surgery), and can vary in terms of the extent of their scientific development.