The primary patient is , a 12-year-old girl with an arteriovenous malformation (AVM) on her neck.
Shaun deals with the news of his father's terminal illness and a potential reconciliation with his mother. Dr. Lea Dilallo supports him as he navigates his anger and pity toward them. [S4E18] Forgive or Forget
By the time they agree to the procedure, the AVM has grown significantly and infiltrated her lung. Surgeons are forced to perform a much more aggressive operation, resulting in diminished lung capacity. The primary patient is , a 12-year-old girl