It turns out that in addition to her diverticulitis (seriously, try typing that quickly; oy), they found a mass in her liver. George is already sad for Meredith that she has to deal with Ellis's cancer on top of everything else, but Richard reminds him they don't know for sure that it's cancer until they do a biopsy. Addison has been following them down the hall when Izzie catches up with her. Addie tries to say no to a new patient until Izzie throws her cards on the table and admits that it's Cristina who has collapsed. George is worried, and also confused that she'd be asking Addison for help. After yet another Meaningful Glance, this time from Izzie, they all realize why. George, ever the model of restraint and discretion, exclaims, "Cristina's pregnant?!" Addison rushes off behind Izzie, calling over her shoulder that she's still leaving in the morning; the Chief takes off his hat and rubs his head; and George declares, "This is a very bad day."
Meredith and Alex are both in surgery with Mr. Dr. Shepherd. Richard comes in and without pretense demands that he be cleared for surgery, and that all he needs is a verbal okay. Derek won't do it, despite Richard declaring that he's the Chief and this is not a request. Derek points out that in this situation, it's his call, as he's Richard's doctor and Richard isn't ready. The Chief sends a Meaningful Glance in Mere's direction and says more quietly that it's a simple procedure. George is waiting in the doorway the whole time; wouldn't that have been a giveaway to Meredith already that this concerned her mother? Richard argues to do a simple biopsy, and Derek wonders what he's missing as to why a resident can't do it. Richard can't not look at Meredith guiltily, and she guesses that it's about her mom, asking if he thinks she has cancer. Richard just tells her that George needs her signature. Derek sympathetically but sternly says he knows Ellis is a friend, but that he's not clearing Richard for surgery.
Outside, Meredith looks over the paperwork and asks George questions. We all know how badly he covers any sort of secret, and she asks what he's not telling her. He admits, "It's Cristina."