We're suckers for medical mysteries like the one in today's Washington Post health section headlined "Five Doctors, Stumped." Today's medical whodunit (or more accurately who-didn't-do-it) was about the misdiagnosis of a woman named Bettie Munro, thought to have Parkinson's disease. Munro did not have Parkinson's. Instead, an upset stomach among other things had changed how her aging body was absorbing lithium, creating a toxic condition. One sentence near the end of the story particularly struck us, "One physician said he thought another had checked her (lithium) level, so he didn't bother." It made us think about the interview we just posted with Dr. Carol Diamond, an expert on health information technology at the Markle Foundation. We don't believe (and Diamond doesn't assert) that health IT will stop every medical mistake, avoid every misdiagnosis, create a perfect world of health and harmony. But we can't help wondering: if the five doctors caring for Bettie Munro—a psychiatrist, a neurologist, her internist, a gastroenterologist and her husband, a retired obstetrician—had all been reading one computerized medical record, with all her medications, all her lab work, all her symptoms, all their (legible) notes, wouldn't there have been a pretty decent chance that one of them would have figured out what was wrong? Or what needed to be done? She and her family would have suffered less. And the health care system would have saved $100,000 in tests, medicines and unnecessary hospitalizations.