Someone I know had a DD who had a pap test (through a military hospital, her DH was enlisted at the time) and was never informed of her results. Ever. It wasn't that they moved and were "out of touch" she was never told. When nobody notified her of her results (good or bad) she assumed everything was alright.
So time went by, and she started having some problems, went to have a doctor check it out, turns out she was in an advanced stage of cervical cancer. It had already spread to other organs. She died.
Did they sue?
You bet! When the records were were brought to court, the cancerous test result was right there in black and white. Nobody ever took the time to let her know. Had she been told when it was first found, she may still be alive today.
She left behind two kids under the age of 12 and a loving husband, not to mention her two parents.