
Presto: blood type AB out of a hat
House explains Finn got the wrong blood type because an autoimmune disease made him look type AB, and finally has a case of lupus.
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3 moments.

House explains Finn got the wrong blood type because an autoimmune disease made him look type AB, and finally has a case of lupus.

House is outraged the final book resolves nothing, then decodes Alice's illness and plan through her character Helen.

While mopping the clinic, House tells the doctors their joint-pain patient does not have gonorrhea and calls lupus from subtle eyebrow loss.