Long story short: Chen tells Elizabeth she's pregnant. Elizabeth's all "that's impossible" and Chen gives her a look like, "You live with Mark, so I suppose you could actually be celibate right now." Chen invites Elizabeth to lie down, which she does.
Cut back to Mark, also flat on his back and looking anxious. I know this is supposed to show their symmetry -- soulmates, psychic bond, blah -- but given they're both strawberry blonds, it really just makes them seem more like the Bobbsey Twins than ever. These two? Fraternal. Not carnal. Anyway, the scan over, Mark gets up and stares at several dozen images of his brain. And he has a tumour. Mark asks Dr. No how bad it is, and Dr. No declines to offer a diagnosis, and tells Mark to see a neurosurgeon "right away." I make an appointment to see one too, just in case.
Teri and Howie: I swear to god, shut up. Now. She is like the original scary clown at this point.
Weaver and Mitchell are out having dinner in a schmancy restaurant. Weaver's telling a funny story about a guy she treated who swallowed a bunch of nails and various metal tools and such. Mitchell is eating it up with a spoon, although Elizabeth Mitchell's fake laugh is...really fake. Weaver says, "So my husband says to me, 'You've gotta go in there and consent this guy.'" "You were married?" Mitchell asks, immediately. Weaver pauses in her hilarity to confirm that she was: "He was a surgical resident." "Was" at the time the events of this story were taking place? "Was," and now he's a surgeon? "Was," and now he's deceased? We will not find out tonight. Weaver resumes her story just in time for the punchline: she asked him how he got all the hardware down, and the patient replied, "A good Chablis." Ba-dum-bump. Weaver starts cackling again, doubles over with giggles, and tips over her wine glass. She apologizes profusely, and Mitchell says it's all right: "You missed most of me." Dude, what is up with Mitchell's hair? Either curl it all the way to the ends, or wear it straight. It looks like a wig that's been crumpled up in a wet paper sack and jammed into a hobo's bedroll.
Mark sits pensively outside the hospital, musing about life and love and his own mortality. Chen walks out and joins him to ask whether he's okay, and he tells her he's just heading out.
Lisa trucks down the hall and runs into Carter, escorting The Late Anthony Lee toward Surgery. He asks what happened to her; she doesn't know what he means, so he indicates his own hair by way of asking about hers, and she says she went for a walk. "In the rain?" he asks nosily, and she changes the subject by asking after The Late Anthony Lee. He tells her the story minus the controversy, and asks her if she needs any help. She indicates a bag in her hand and says she's just starting an IV, but he explains that he means help with Sally. Lisa smiles at the offer, but declines: "Every time she goes off her meds, she says she's not going to do it again; why should this time be any different?" Carter, not realizing it's a rhetorical question, exhales, "I don't know," and Lisa looks in and observes that her patient is smoking "again," and takes the convenient excuse to leave the conversation.