References
1- Azizova A, Onder O, Hazirolan T, Persistent left superior vena
cava:clinical importance and differential diagnoses . Insight Imaging
.2021 Dec;12:49.
2- Chen J_l, YU C_G, Chen H_B. Misdiagnosis of unroofed coronary
sinus syndrome as ostium primum artrial septal defect by
echocardiograghy. World J clin Cases. 2022 Feb 16; 10(5):1592_1597
3- Perles Z, Nir A, Gavri S et al (2013) Prevalence of persistent
superior vena cava and association with congenital heart anomalies. Am J
Cardiol 112(8):1214–1218.
4- Nagasawa H, Kuwabara N, Goto H, et al. Incidence of Persistent Left
Superior Vena Cava in the Normal Population and in Patients with
Congenital Heart Diseases Detected Using Echocardiography. Pediatr
Cardiol. 2017;39(3):484–490.
5- Velamakanni SM, Khadkikar G, Panchal SS, Patel A, Shah BR. Unroofed
Coronary Sinus in a Patient With Prior Surgical Closure of Secundum
Atrial Septal Defect. Cureus. 2021 Nov 8;13(11):e19350.
6- Liang J, Liu W, Liu J. [Unroofed coronary sinus syndrome].
Zhonghua Wai Ke Za Zhi. 1996 Sep;34(9):546-8. Chinese. PMID: 9594159.
.