A Vietnamese girl is finally free of a disfiguring 16-pound facial tumor, after a surgery that lasted at least 12 hours in Miami.

The Schwannoma tumor had consumed the lower half of 15-year-old Lai Thi Dao's face. It had been growing since she was 3 and eventually accounted for roughly one-third of her body weight.

Doctors at the University of Miami/Jackson Memorial Medical Center tell The Miami Herald that Lai's tumor was one of the largest ever reported. The growth had threatened to cut off her airway.

Schwannoma tumors are usually benign. Lai's doctors say the size of her tumor is extremely rare, but it probably won't return once it's removed.

The teen hopes to finally attend school once she recovers and returns to Vietnam.

The International Kids Fund, which helps foreign children with urgent health needs, is seeking donations to pay for the surgery.

Click here to watch a video about Lai Thi.