Grey's Anatomy (2005)

S14E18 Hold Back the River

Amelia, Koracick, and DeLuca undertake a daring and innovative surgery that employs ultrasound waves to eliminate a brain tumor from a young patient. At the same time, Meredith and Jo experiment with various polymers in hopes of saving their project submission. Meanwhile, Richard's AA sponsor is brought into Grey Sloan, accompanied by a do-not-resuscitate order.