Transition from classic aortic dissection to aortic intramural hemorrhage--a case report

Area of Science:

• Cardiovascular Medicine
• Radiology
• Pathology

Background:

• Stanford type A aortic dissection is a life-threatening condition involving the ascending aorta.
• Aortic dissection can present with or without intramural hemorrhage, a collection of blood within the aortic wall.
• The transition between intramural hemorrhage and false lumen formation in aortic dissection is not fully understood.

Observation:

• A 64-year-old male presented with chest and back pain, diagnosed with Stanford type A aortic dissection.
• Initial computed tomography (CT) revealed a false lumen from the ascending to descending aorta.
• A follow-up CT demonstrated resolution of the false lumen and signs of intramural hemorrhage.

Findings:

• This case documents the first reported transition from a false lumen aortic dissection to intramural hemorrhage.
• The findings challenge the previously understood unidirectional progression from intramural hemorrhage to false lumen formation.
• The observed changes suggest a dynamic and potentially reversible process in aortic dissection.

Implications:

• This unique case provides valuable insights into the pathogenesis of aortic dissection with intramural hemorrhage.
• It highlights the complex relationship between intramural hemorrhage and false lumen types of aortic dissection.
• Further research is warranted to elucidate the mechanisms underlying these transitional phenomena in aortic pathology.