Spontaneous pericardial hematoma in an infant

The finding of a pericardial hematoma is ran in the pediatric population. I ts occurrence in an otherwise healthy 3-month-old infant is unprecedented i n the literature. The hematoma was initially identified by echocardiography . Computerized tomography and magnetic resonance imaging did not contribute to the identification of the mass. An exploratory thoracotomy was necessar y to rule out a neoplastic process. The final diagnosis of hemorrhagic peri carditis was made.