26 October 2021
: Case report 
Platypnea Orthodeoxia Due to a Patent Foramen Ovale and Intrapulmonary Shunting After Severe COVID-19 Pneumonia
Unusual clinical course, Challenging differential diagnosis
Blair K. Dodson1EF*, C. Kendall Major2EF, Maxwell Grant1EF, Byung Soo Yoo
1E, B. Mitchell Goodman1E
DOI: 10.12659/AJCR.933975
Am J Case Rep 2021; 22:e933975
Figure 1. (A) Chest X-ray (CXR) on day 1 of first diagnosis showing no baseline cardiopulmonary abnormalities. (B) CXR on day 3 of illness demonstrating significant multifocal opacities. (C) CXR on day 1 of second hospital admission, day 16 of illness demonstrating interval improvement in right multifocal opacities, evidence of scarring in right upper lobe. (D) CXR showing continued improvement but persistent scarring in right upper lobe (black arrows). Figures created using eUnity v7.0.0.1.3. Client Outlook, Inc. Ontario, Canada and macOs Big Sur operating system Version 11.4.