When you suspect that a patient has breast cancer, ACOG guidelines place a duty on you to discuss testing and treatment options such as mammography, biopsy, or surgery. It might seem obvious, but it's also a good idea to follow up on your patients' testing and treatments; doing so can help reduce the likelihood that a patient will win a failure-to-diagnose claim against you. To ensure that patients receive appropriate follow-up, and to minimize legal risk, ACOG Today (May/June 2004) recommends the following: