Abstract
A child presenting with a sternal mass is rare. Here, we present a case report of a toddler with an acute sternal mass. At first, antibiotics were started as the differential diagnosis included osteomyelitis. However, the combination of young age, typical clinical characteristics and  dumbbell-shaped appearance on ultrasound led to the diagnosis of self-limiting sternal tumour of childhood. To prevent invasive diagnostic interventions and unnecessary treatment, it is important to be able to identify the clinical features and ultrasound characteristics of this benign entity.