FIGURE 1 Autopsy specimen illustrating patent foramen ovale, as viewed from the left atrium
From the following article:
Patent foramen ovale and cerebrovascular diseases
Amish J Desai, Cindy J Fuller, Jill T Jesurum and Mark Reisman
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Figure 1. Autopsy specimen illustrating patent foramen ovale, as viewed from the left atrium
The probe is holding up the septum primum. Photograph courtesy of and reproduced with permission from S Mackey, Jesse E Edwards Registry for Cardiovascular Disease, St Paul, MN, USA.

