11 Possible Causes for Prominent Aortic Knob in USA

• Supravalvular Aortic Stenosis

  A prominent aortic knob indicates post-stenotic dilation in valvular AS.^[1]

• Thoracic Aortic Aneurysm
  Prominent Aortic Knob
• Non-Cranial Giant Cell Arteritis
  Prominent Aortic Knob
• Traumatic Aortic Rupture
  Prominent Aortic Knob
• Dissecting Aortic Aneurysm
  Prominent Aortic Knob
• Ankylosing Spondylitis
  Prominent Aortic Knob
• Patent Ductus Arteriosus
  Prominent Aortic Knob
• Marfan Syndrome
  Prominent Aortic Knob
• Aortic Valve Stenosis
  Prominent Aortic Knob
• Aortic Disease

  Noninvasive Imaging TAAs are often noted incidentally on chest x-ray as a widened mediastinum or a prominent aortic knob.^[2]

Similar symptoms

• Aortic Aneurysm
• Aortic Aneurysms (Ascending Aorta or Aortic Arch)
• Aortic Arch Syndrome
• Aortic Dilation
• Aortic Dissection with Little or No Aortic Enlargement
• Aortic Rupture
• Aortic Valve Calcification
• Aortic Valve Ring Calcification
• Aortic Valve Stenosis
• Dissecting Aortic Aneurysm
• Moderate Aortic Regurgitation
• Prominent A-Wave
• Prominent Antihelices
• Prominent Aortic Knob
• Prominent Cheeks
• Prominent Chorea
• Prominent Elbows
• Prominent Knees
• Prominent Nucleoli
• Prominent Occiput
• Prominent Periosteum
• Prominent Sacrum
• Prominent Sulci
• Prominent Sutures
• Prominent Trabeculations
• Prominent Trochanter
• Prominent Ventricles
• Right Aortic Arch
• Supravalvular Aortic Stenosis
• Thoracic Aortic Dissection

References

1. Aortic Stenosis (AS), http://www.utmb.edu/pedi_ed/CORE/Cardiology/pag…
2. Diseases of the Aorta, http://www.clevelandclinicmeded.com/medicalpubs…