One case (AB734) harbored a somatic likely oncogenic PPP2R1A mutation (c.767C>T:exon6:p.S256F) that was present in both the PDX tumor and parental tumor samples, and another case (AB739) harbored a somatic likely oncogenic FBXW7 mutation (c.1513C>T:exon12:p.R505C) that was present in both the PDX tumor and parental tumor samples. Here, PPP2R1A is linked to neoplasm.