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RADIOLOKSABHA

Unfolding of Aortic arch

By Dr.Pavan Kumar In OTHERS Posted September 23, 2018

Patient History : Two cases with apparently wide and abnormal looking upper mediastinum. A 55yr old male, posted for inguinal hernia repair, and otherwise asymptomatic. CXR for anesthetic fitness.
Gender:Male
Age:55 yea

Widening of upper mediastinum is due UNFOLDING OF AORTIC ARCH.

With advancing age, aorta tends to elongate and dilate, resulting in the so called unfolding of aortic arch.The aortic knob becomes larger and higher.The descending aorta becomes more tortuous, hence convexity increases which may appear like an aneurysmic dilatation.

The upper mediastinal widening in the infant is due thymic shadow. (normal)