Matadi was flown to the United States from the Congo with help from retired NBA star Dikembe Mutombo.
Mutombo is originally from the Congo, and his foundation has built a hospital there.
The foundation sponsored the boy's trip to Los Angeles, where he underwent surgery Sunday at the Osborne Head & Neck Foundation for free.
The Ronald McDonald house is also providing housing for him and his father while he recovers.
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