Intraosseous Venous Malformation of the Rib With EWSR1-NFATC1 Fusion Mimicking Malignancy: A Pediatric Case Report

Key Points

• The aim is to illustrate the importance of accurate diagnosis through biopsy and genetic testing in pediatric cases.
• Conducted an open biopsy
• Performed molecular testing for accurate diagnosis
• Evaluated clinical and imaging findings
• Confirmed diagnosis of intraosseous venous malformation
• Identified ewsr1-nfatc1 fusion
• Prevented unnecessary treatment associated with misdiagnosis