Grey's Anatomy, Season 7Edit
She was first brought to the hospital as one of the children who were to recieve surgeries as part of Alex Karev's plan to improve his chances of being chosen as the new Chief Resident. Derek would operate on Zola to help with her spina bifida. Derek became attached to Zola after she stopped crying because he adjusted her head position to releave the cerebro spinal fluids pressure on her brain as he cradled her.
Grey's Anatomy, Season 8Edit
Derek and Merediths adoption of Zola is jeopardised when Meredith alters Derek's Alzheimers trial to make sure Adele Webber would not recieve a placebo. However Alex (feeling guilty over being the one to report Merediths alterations), speaks to the adoption officer in an atempt to aid their adoption.