[PPTH Conference Room — November 18, 2004, 2:30 PM]
The MRI showed nothing.
Or rather, it showed a brain that looked normal to anyone reading it without Isaac's particular advantage — no obvious masses, no demyelinating plaques, no vascular abnormalities. The radiologist signed off on it as unremarkable. Foreman presented the results to the team with the restrained frustration of a man who'd expected answers and gotten a blank wall.
"Clean MRI, clean LP, clean tox screen." Foreman dropped the films onto the light box, the images glowing white-blue. "We're running out of things to rule out."
"Which means we haven't thought of the right thing yet," House said. He was in his chair, tennis ball in hand, throwing it at the ceiling and catching it. The rhythm was meditative and constant, the kind of repetitive motion that meant his brain was running diagnostics on a level the rest of the room couldn't access. "What fits? Sudden neurological decline, progressive, young female, clean imaging."
"The imaging could be wrong," Chase said. "If it's a small lesion in the right location, standard MRI sequences might miss it."
"Which is why we need to go back to the patient," Cameron said. "There's something in her history we're missing. She mentioned she had a ham sandwich the week before symptoms started. What if—"
"A ham sandwich didn't give her aphasia." House caught the tennis ball and held it. His eyes were on the light box, on the MRI images that told a lie by omission. "But food as a vector isn't stupid. Undercooked pork. Parasitic. Neurocysticercosis."
Isaac's stomach tightened. There it was. The first wrong answer — the one the show had chased for most of the pilot episode. Tapeworm in the brain. Logical, defensible, and incorrect.
"Cysticercosis would explain the episodic symptoms," Foreman said, straightening. "Cysts cause intermittent mass effect as they swell and shrink. CT and standard MRI can miss small cysts, especially early."
"Run a cysticercosis serology," House said. "And get a contrast-enhanced MRI. If there's a cyst, gadolinium will light it up."
The team mobilized. Cameron headed for the patient's room to draw blood. Foreman called radiology for the repeat scan. Chase pulled up protocols on the conference room computer. House stayed in his chair, tennis ball resuming its ceiling arc.
Isaac didn't move.
He was watching the diagnostic process unfold — the machine working exactly as it had on television, gears turning, wrong answers eliminated one at a time until the right one emerged. Except now he was inside the machine, and the gears grinding were days of Rebecca Adler's life spent on treatments that wouldn't help, side effects from antiparasitic medication she didn't need, and the slow corrosion of her trust as nothing got better.
He could stop it. Right now. Stand up, say it's not a parasite, it's a glioma, and end this.
And House would look at him with those X-ray eyes and ask how a first-week fellow had leapfrogged the entire diagnostic process. And Isaac would have no answer that didn't involve time travel or television.
Isaac went to see Rebecca.
---
[Rebecca Adler's Room — 4:15 PM]
She was sleeping when he arrived. The crossword book had fallen to the floor, pen still wedged between the pages. Isaac picked it up and set it on her bedside table, and as he leaned close, the vision came.
He didn't invite it. Transparent World activated the way it did in Phase One — unbidden, triggered by proximity and focus, his brain deciding for him that this was the moment to look deeper. The room fractured into layers.
Rebecca's skull became transparent. Bone thinning to glass, meninges peeling back like pages of a book, and there — right there, nestled against the left frontal lobe, pressing into Broca's area with the quiet persistence of a root cracking concrete — a mass.
Not a cyst. Not a parasite. A glioma.
Small. Maybe two centimeters. Positioned in exactly the wrong place, compressing the brain tissue responsible for language production and, as it grew, reaching tendrils of influence toward the visual cortex and the regions governing higher cognition. The MRI had missed it because the tumor's density was similar to surrounding brain tissue on standard sequences. Contrast enhancement might catch it. Might not.
Isaac could see the blood supply feeding it — tiny vessels, newly formed, the chaotic vasculature of a tumor building its own infrastructure. Angiogenesis. The body's resources hijacked, rerouted, turned against itself.
The vision held for eight seconds before the pain arrived. A spike behind his left eye, sharp enough to make his jaw clench. Isaac blinked and the layers collapsed, reality reasserting itself — Rebecca was just a sleeping woman in a hospital bed again, and his head was pounding with the specific deep-bone ache that came from using a power his brain hadn't yet learned to handle.
He stepped back. Sat in the visitor's chair. Pressed his palms against his closed eyes and waited for the throbbing to subside.
Confirmation. Not that he'd needed it — the show had already told him the answer — but seeing it, actually seeing the tumor with his own impossibly enhanced vision, made it real in a way that memory of a television episode never could. Rebecca Adler had a mass in her brain, and Isaac was the only person in this hospital who knew it.
The contrast MRI was scheduled for tomorrow morning. There was a decent chance gadolinium would reveal the tumor, and the diagnostic process would correct itself. If it didn't — if the imaging remained equivocal — Isaac would have to make a harder choice.
But not yet. Not today.
Rebecca stirred. Her eyes opened, found him, and for a moment she looked confused — the expression of someone waking in a place they didn't choose. Isaac knew that expression from the inside.
"Dr. Burke." Her voice was rough with sleep. "Is there news?"
"We're running more tests. The team has a theory — parasitic infection. We should know more tomorrow."
"Parasites." She processed this with the studied calm of someone who'd been told too many frightening things in too short a time. "In my brain?"
"It's one possibility. We're exploring several." Isaac leaned forward, elbows on his knees. "How are you doing? Not medically — just... how are you?"
The question caught her off guard. Her polished composure flickered, and underneath it Isaac could see — not with Transparent World, just with his own eyes — the fear. The loneliness of a person surrounded by doctors who talked about her in third person and machines that saw through her but never spoke to her.
"I'm scared," Rebecca said. "I teach kindergarten. I'm supposed to be the one who makes things make sense. And right now nothing makes sense."
"That's honest."
"My mother always said I was a terrible liar."
Isaac almost smiled. Almost. "Rest is the best thing you can do right now. We'll have answers soon."
He left the room carrying the image of the tumor behind his eyes — a ghost overlaid on his normal vision, the afterimage of Transparent World lingering the way it did when he pushed too hard. The hallway lights were too bright. His left temple throbbed with each step.
---
[PPTH Conference Room — November 19, 2004, 10:45 AM]
The contrast MRI caught it.
Isaac was sitting in the conference room drinking his third coffee of the morning — bad coffee, hospital coffee, the kind that tasted like it had been filtered through a shoe — when Foreman walked in with the new films and clipped them to the light box without a word. The room went quiet.
There. Left frontal lobe. A small, ring-enhancing lesion, bright against the gray brain tissue, unmistakable now that gadolinium had painted it in contrast. Two centimeters of cellular rebellion, sitting exactly where Isaac had seen it yesterday through Rebecca Adler's skull.
"That's not a parasite," Cameron said.
"No," Foreman agreed. "That's a tumor."
House was already at the light box, face inches from the film, his cane forgotten against the table. His eyes moved over the image with the consuming focus of a man encountering a puzzle that had just shifted shape beneath his hands.
"Low-grade glioma," House said. "Small. Operable. She's lucky — another six months and it would have been inoperable." He turned from the films. "Cysticercosis serology?"
"Negative," Chase said. "Came back this morning."
"So the ham sandwich was innocent. And the tumor was hiding behind normal-density tissue on the initial MRI." House's gaze swept the room and landed — inevitably, magnetically — on Isaac. "You pushed for imaging from day one. Brain imaging. Space-occupying lesion."
Isaac's coffee cup was warm in his hands. "The symptom pattern favored a focal process."
"The symptom pattern favored a lot of things. You picked the right one." House didn't blink. "Pattern recognition. From a first-week fellow who hasn't seen a hundred cases yet."
"I read that case study I mentioned. Similar presentation, similar outcome."
"What journal?"
The question was a test. Isaac's Memory Palace — disorganized, chaotic, still in Phase One — scrambled for an answer. He'd fabricated the citation in the earlier differential, pulling from Burke's stored knowledge of obscure medical literature. The body's muscle memory had known which journals to reference. Now he needed the specifics.
"Archives of Neurology, 2002," Isaac said. "Case report out of Johns Hopkins. Young female, progressive aphasia, clean initial imaging, tumor found on contrast MRI after parasitic infection was ruled out."
House watched him. The silence stretched long enough for Isaac to hear the ventilation system humming and Chase's pen tapping against the table.
"I'll look that up," House said. And turned back to the whiteboard.
Four words. Casual. Almost throwaway. But Isaac heard the promise underneath them — I'll look that up, and if it doesn't exist, I'll know you lied, and if it does exist, I'll wonder how you found it so fast. Either way, House would be watching. Closer now. More carefully.
The team dispersed to arrange Rebecca's surgical referral. Cameron was coordinating with neurosurgery. Foreman was updating the chart. Chase was somewhere between the lab and the parking garage, occupying the middle distance he favored when the interesting work was done.
Isaac stayed at the table. His coffee had gone cold again. The headache from yesterday's Transparent World use had faded to a dull presence behind his eyes — manageable, ignorable, a reminder that his powers had costs he was only beginning to catalogue.
Rebecca Adler would have her surgery. The tumor would come out. She'd recover, teach kindergarten again, live a life that intersected with this hospital for a handful of terrifying days before continuing on its own trajectory.
Isaac had saved her exactly one day faster than the show. Maybe less. The margin between knowing the answer and proving it was wider than he'd expected — you couldn't just be right, you had to be right in a way that looked natural, earned, plausible. And Gregory House was the world's foremost expert on detecting when something looked plausible but wasn't.
Isaac rinsed his coffee cup in the conference room sink, set it on the drying rack, and left.
The hallway was quiet. Evening shift settling in, the hospital's rhythm downshifting from the urgent staccato of daytime to the lower, steadier pulse of night. Isaac walked past Rebecca's room — she was on the phone, smiling, talking to someone who made her laugh — and kept going toward the elevator.
Behind him, in the conference room, the light box was still on. Rebecca's MRI glowed in the empty room, the tumor a small bright spot in an otherwise healthy brain.
And in House's office, visible through the glass wall, a desk lamp burned. The computer screen was lit. Isaac could just make out the browser window — a medical journal search engine, query terms he couldn't read from this distance.
House was looking up the Archives of Neurology article.
Isaac stepped into the elevator and pressed the button for the lobby, and the doors closed on the sight of House's office light burning against the darkened hallway like a single open eye.
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