Type A aortic dissection mimicking saddle pulmonary embolism on CT imaging

A Case Report of an Unusual Acute Intramural Hematoma Disguise as Pulmonary Embolism

Aortic intramural hematoma (IMH) is characterized by an aortic wall hematoma without intimal flap and it is a variant of acute aortic syndromes (AAS). This entity may represent 10%-25% of the AAS involving the ascending aorta and aortic arch (Stanford Type A) in 10%-30% of cases and the descending thoracic aorta (Stanford Type B) in 60%-70% of cases. IMH impairs the aortic wall and may progress to either inward disruption of the intima, which finally induces typical dissection or outward rupture of the aorta. The literature describes some clinical reports where Type A aortic dissection mimics a pulmonary embolism but is not described as a case provoked by IMH with outward rupture of the aorta.

Simultaneous Aortic Dissection and Pulmonary Embolism: A Therapeutic Dilemma

Aortic dissection and pulmonary embolism are medical emergencies that present with a spectrum of symptoms. Most cases of aortic dissection can present with acute chest pain, though some cases may present with other spectra of symptoms. In rare cases, aortic dissection can present simultaneously with pulmonary embolism. We are presenting a case where we saw aortic dissection and pulmonary embolism simultaneously. This case shows the subtle and atypical presentation of simultaneous occurrence of these two highly fatal diseases. To our knowledge, this case has not been published before.