Lung cancer patient Penny Muzanowski is discharged from Chicago’s Northwestern Medical Hospital after lung transplant.

CHICAGO (WLS) — Ringing the bell is the most cherished moment for many cancer patients.

Penny Muzanowski ended her battle with lung cancer on Wednesday.

She received a lung transplant at Northwestern Medical School.

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The 65-year-old cancer survivor is a former gymnast and barber who lives in Griffith, Indiana.

“Northwestern Medicine is the only health system in the nation that performs lung transplants for certain patients with advanced lung cancer,” the health system said.

During her stay, she made handmade cards decorated with bees for every staff member who came into the room, including nurses, doctors, housekeeping, and food service.

Muzanowski called the cards “Doodle Bee Therapy.”

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Hospital staff made a handmade card to celebrate Muzanowski’s discharge from the hospital.