Transposition of the great arteries: A laterality defect in the group of heterotaxy syndromes or an outflow tract malformation?

An illustration showing the 4 different variations of bodily organs in the lateralized (left-hand two columns) and isomeric (right-hand two columns) arrangements, including atrial appendages. The upper panels show the atrial appendages morphology, the second upper panel the bronchial morphology, and the relations of the bronchuses to the pulmonary artery feeding the lower lobes of the lungs, the third upper panel shows the pulmonary morphology, and the last lower panel shows the arrangement of the liver, stomach, and spleen. Adopted from: Anderson et al. (J Cardiovasc Dev Dis. 2018;5:11)