A unique case of hybrid SEF-LGFMS with a EWSR1-CREB3L1 Fusion and robotic-assisted bronchoscopy in an 11-year-old Authors: Leore Lavin, MS1*, Nithya Krishnamurthy, BA1*, Chantal Spencer Grant, MD2, Kayleen Bailey, MD3Affiliations : 1Icahn School of Medicine at Mount Sinai, 2Mount Sinai Hospital Department of Pediatric Pulmonology, 3Mount Sinai Hospital Department of Pediatric Hematology-Oncology* Both authors contributed equally to this workCorresponding author: Leore Lavin,[email protected] East 98th St. New York, NY 10029. 646-709-8909.Running title: Rare pediatric SEF-LGFMS with EWSR1-CREB3L1 FusionKeywords: Robotic Bronchoscopy, Pediatric Oncology, SEF, LGFMS, EWSR1, CREB3L1Abbreviations: