Spontaneous peri-aortic hematoma in a patient with new-onset chest pain.

Peri-aortic hematoma formation is a common sequela of esophageal rupture and aortic dissection, but non-traumatic spontaneous hematoma formation is an uncommon finding. We present the case of a spontaneous peri-aortic hematoma in a 66-year-old male with associated left atrial thrombus. This 66-year-old male presented to a local emergency department with non-radiating epigastric and mid-sternal chest pain and was found to have a non-traumatic peri-aortic hematoma of unknown etiology that developed over a period of 12 hours.