A child possessing a concurrent germline NF1 variant and a mosaic TP53 variant: A rare case discussionMaya Ball-Burack1,2, Francisco A Perez2,3, Natalie Waligorski2, Shannon M Stasi7, Bonnie L Cole6,7, Rebecca Ronsley1, 2, 4, Vera Paulson5,6, Christina Lockwood5,6, Sarah E Leary1,2,4, Michelle A. Ting1,2,4Department of Pediatrics, University of Washington, Seattle, WA, USASeattle Children’s Hospital, Seattle, WA, USADepartment of Radiology, University of Washington, Seattle, WA, USABen Towne Center for Childhood Cancer Research, Seattle Children’s Research Institute, Seattle, WA, USAGenetics and Solid Tumors Laboratory, Department of Laboratory Medicine and Pathology, University of Washington School of Medicine, Seattle, WA, USDepartment of Laboratory Medicine and Pathology, University of Washington School of Medicine, Seattle, WA, USADepartment of Laboratories, Seattle Children’s Hospital, Seattle, WA, USA