1. Radiology department, Kasr Alainy hospitals, Cairo University, Egypt.
2. Fetal medicine unit, Obstetrics and gynecology department, Kasr Alainy hospitals, Cairo University, Egypt.

Case report

The following images and videos show an aneurysm of the ductus arteriosus with unusual course seen at 27 weeks of pregnancy, that represents an U shaped pathway (turning toward the midline abutting the right wall of the trachea but not encircling it), behind the ascending aorta and above the right pulmonary artery, then back to join the isthmic portion of the aortic arch. Both arches are on the left side. A previous case showing this unusual pathway of ductus arteriosus was reported by Acherman and his colleagues at 2008¹. No other cardiac anomalies were detected. Normal male baby was delivered with uneventful postnatal course.

Images 1-4; videos 1-4: 2D and color doppler images showing the aneurysm and unusual pathway of the ductus arteriosus.

References:

1- Acherman, Ruben J., William N. Evans, Donald Roberts, Julie Machette, William Castillo, and Robert Rollins. "An unusual fetal ductus arteriosus pathway." Journal of Ultrasound in Medicine 27, no. 7 (2008): 1123-1124.