Speak with a medical malpractice attorney right away--do not lose any time--since you may have a cause of action.Malpractice, or literally "bad practice," is the provision of medical care which does not meet currently accepted standards. Failing to warn a patient (or in this case, her family) about a condition which a physician noticed could easly be malpractice, and you could potentially recover for the extra  damage and medical costs caused by the delay.The reason to hurry is that there is generally a short "statute of limitations," or time to sue, for malpractice claims; if you wait too long, you will lose the right to sue.