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Hepatic Focal Nodular hyperplasia
Joseph Junewick, MD FACR
over 7 years ago
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Aortic Origin of Right Pulmonary Artery

Case Detail

Anatomy: Vascular-Lymphatic
Junewick
Joseph Junewick, MD FACR
Diagnostic Category: Developmental or Congenital
Created: over 5 years ago
Updated: over 4 years ago
Tags: PEDS
Modality/Study Types: CT
Activities:
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History

Newborn with diminished peripheral pulses.


Case Images


Diagnosis

Aortic Origin of Right Pulmonary Artery

Findings

CT – Axial, multiplanar MIP and 3D volume rendered images show origin of the right pulmonary artery from the aorta; the left pulmonary artery arises from the pulmonary trunk; note the juxtaductal narrowing of the aorta.

Discussion

Origin of the right pulmonary artery from the aorta is a rare anomaly resulting in a left to right shunt, heart failure and if untreated death in early infancy. The lesion may result from two different developmental defects: abnormal septation of the primitive truncus or atresia of the proximal portion of the sixth right aortic arch and persistence of the distal portion as a right ductus arteriosus.

Reference

Rosenberg HS, Hallman GL, Wolfe RR, et al. Origin of the right pulmonary artery from the aorta. Am Heart J (1966); 72(1):106-115.



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