All In (House)
episode of House (S2 E17)
"All In" is the seventeenth episode of the second season of House, which premiered on Fox on April 11, 2006.
Plot
During a field trip in a museum exhibit about the human body, six-year-old Ian Alston is found to have bloody diarrhea. Meanwhile, at a charity casino night at Princeton-Plainsboro, House, Wilson, and Cuddy are engaged in a game of Texas hold 'em poker when Cuddy receives the news about her new patient. She dismisses it as dehydration and gastroenteritis, but House, recognizing the symptoms and thinking this could be more than what she suggested, decides to drop out of the game (folding a pair of aces to Cuddy's bluff) and take the case behind her back.
With his suspicion, House tests Ian's coordination by asking him to reach out and grab his cane, which takes Ian multiple grasps until he actually touches the cane. House concludes Ian has ataxia and begins to assume Ian has the same disease as a former patient from twelve years ago, 73-year-old Esther Doyle, who died under House's care and was never correctly diagnosed. House then drags Cameron, Foreman, and Chase out of the party to perform a differential diagnosis. Drawing up a list of all of Esther's symptoms, House is able to predict what will happen to Ian next, as well as how long it will take him to get there.
House first suspects it is Erdheim–Chester disease and orders a colonoscopy, but tests are negative. House, knowing the next symptom that will develop is kidney damage, orders a kidney biopsy, which turns out to be negative.
“All In (House)” enters the record as episode of House (S2 E17). Crown Archives preserves that source wording while asking what House and episode can confirm, complicate or overturn.
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The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Jun 24, 2026. The linked authority identifier is Q4728921. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 2006.
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