Resolution: standard / high
Figure 4.
In this specimen, again photographed as for Figure 1, the defect extends to the level of the pulmonary valve due to failure of muscularisation of the outlet septum during development of the heart. This type of defect is doubly committed and juxtaarterial, but is also perimembranous.
Bailliard and Anderson Orphanet Journal of Rare Diseases 2009 4:2 doi:10.1186/1750-1172-4-2
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