Two months later, a startup scraped her algorithm and rebranded it as "MarfanScore AI." They added a sleek dashboard and a subscription fee. They removed her caveats. Their marketing video showed a doctor clicking a button and receiving a definitive "Low Risk" or "High Risk" in green or red text.

She called it the Marfan Calculator.

But for every textbook case, there were a hundred ambiguous ones. Patients who were tall, but not that tall. Patients with long fingers, but no family history. Patients who walked out of her clinic with a diagnosis of "maybe" and a return ticket for an echocardiogram six months later.